19806360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 256

約数和(自身を含む): 76723200

約数和(自身を除く): 56916840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 19, 20, 21, 24, 28, 30, 34, 35, 38, 40, 42, 51, 56, 57, 60, 68, 70, 73, 76, 84, 85, 95, 102, 105, 114, 119, 120, 133, 136, 140, 146, 152, 168, 170, 190, 204, 210, 219, 228, 238, 255, 266, 280, 285, 292, 323, 340, 357, 365, 380, 399, 408, 420, 438, 456, 476, 510, 511, 532, 570, 584, 595, 646, 665, 680, 714, 730, 760, 798, 840, 876, 952, 969, 1020, 1022, 1064, 1095, 1140, 1190, 1241, 1292, 1330, 1387, 1428, 1460, 1533, 1596, 1615, 1752, 1785, 1938, 1995, 2040, 2044, 2190, 2261, 2280, 2380, 2482, 2555, 2584, 2660, 2774, 2856, 2920, 3066, 3192, 3230, 3570, 3723, 3876, 3990, 4088, 4161, 4380, 4522, 4760, 4845, 4964, 5110, 5320, 5548, 6132, 6205, 6460, 6783, 6935, 7140, 7446, 7665, 7752, 7980, 8322, 8687, 8760, 9044, 9690, 9709, 9928, 10220, 11096, 11305, 12264, 12410, 12920, 13566, 13870, 14280, 14892, 15330, 15960, 16644, 17374, 18088, 18615, 19380, 19418, 20440, 20805, 22610, 23579, 24820, 26061, 27132, 27740, 29127, 29784, 30660, 33288, 33915, 34748, 37230, 38760, 38836, 41610, 43435, 45220, 47158, 48545, 49640, 52122, 54264, 55480, 58254, 61320, 67830, 69496, 70737, 74460, 77672, 83220, 86870, 90440, 94316, 97090, 104244, 116508, 117895, 130305, 135660, 141474, 145635, 148920, 165053, 166440, 173740, 188632, 194180, 208488, 233016, 235790, 260610, 271320, 282948, 291270, 330106, 347480, 353685, 388360, 471580, 495159, 521220, 565896, 582540, 660212, 707370, 825265, 943160, 990318, 1042440, 1165080, 1320424, 1414740, 1650530, 1980636, 2475795, 2829480, 3301060, 3961272, 4951590, 6602120, 9903180, 19806360]

約数ペア:

[(1, 19806360), (2, 9903180), (3, 6602120), (4, 4951590), (5, 3961272), (6, 3301060), (7, 2829480), (8, 2475795), (10, 1980636), (12, 1650530), (14, 1414740), (15, 1320424), (17, 1165080), (19, 1042440), (20, 990318), (21, 943160), (24, 825265), (28, 707370), (30, 660212), (34, 582540), (35, 565896), (38, 521220), (40, 495159), (42, 471580), (51, 388360), (56, 353685), (57, 347480), (60, 330106), (68, 291270), (70, 282948), (73, 271320), (76, 260610), (84, 235790), (85, 233016), (95, 208488), (102, 194180), (105, 188632), (114, 173740), (119, 166440), (120, 165053), (133, 148920), (136, 145635), (140, 141474), (146, 135660), (152, 130305), (168, 117895), (170, 116508), (190, 104244), (204, 97090), (210, 94316), (219, 90440), (228, 86870), (238, 83220), (255, 77672), (266, 74460), (280, 70737), (285, 69496), (292, 67830), (323, 61320), (340, 58254), (357, 55480), (365, 54264), (380, 52122), (399, 49640), (408, 48545), (420, 47158), (438, 45220), (456, 43435), (476, 41610), (510, 38836), (511, 38760), (532, 37230), (570, 34748), (584, 33915), (595, 33288), (646, 30660), (665, 29784), (680, 29127), (714, 27740), (730, 27132), (760, 26061), (798, 24820), (840, 23579), (876, 22610), (952, 20805), (969, 20440), (1020, 19418), (1022, 19380), (1064, 18615), (1095, 18088), (1140, 17374), (1190, 16644), (1241, 15960), (1292, 15330), (1330, 14892), (1387, 14280), (1428, 13870), (1460, 13566), (1533, 12920), (1596, 12410), (1615, 12264), (1752, 11305), (1785, 11096), (1938, 10220), (1995, 9928), (2040, 9709), (2044, 9690), (2190, 9044), (2261, 8760), (2280, 8687), (2380, 8322), (2482, 7980), (2555, 7752), (2584, 7665), (2660, 7446), (2774, 7140), (2856, 6935), (2920, 6783), (3066, 6460), (3192, 6205), (3230, 6132), (3570, 5548), (3723, 5320), (3876, 5110), (3990, 4964), (4088, 4845), (4161, 4760), (4380, 4522)]