284871720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19949}}^1$

素因数の和:19987

約数の個数: 128

約数和(自身を含む): 1034208000

約数和(自身を除く): 749336280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 19949, 39898, 59847, 79796, 99745, 119694, 139643, 159592, 199490, 239388, 279286, 299235, 339133, 398980, 418929, 478776, 558572, 598470, 678266, 698215, 797960, 837858, 1017399, 1117144, 1196940, 1356532, 1396430, 1675716, 1695665, 2034798, 2094645, 2373931, 2393880, 2713064, 2792860, 3351432, 3391330, 4069596, 4189290, 4747862, 5086995, 5585720, 6782660, 7121793, 8139192, 8378580, 9495724, 10173990, 11869655, 13565320, 14243586, 16757160, 18991448, 20347980, 23739310, 28487172, 35608965, 40695960, 47478620, 56974344, 71217930, 94957240, 142435860, 284871720]

約数ペア:

[(1, 284871720), (2, 142435860), (3, 94957240), (4, 71217930), (5, 56974344), (6, 47478620), (7, 40695960), (8, 35608965), (10, 28487172), (12, 23739310), (14, 20347980), (15, 18991448), (17, 16757160), (20, 14243586), (21, 13565320), (24, 11869655), (28, 10173990), (30, 9495724), (34, 8378580), (35, 8139192), (40, 7121793), (42, 6782660), (51, 5585720), (56, 5086995), (60, 4747862), (68, 4189290), (70, 4069596), (84, 3391330), (85, 3351432), (102, 2792860), (105, 2713064), (119, 2393880), (120, 2373931), (136, 2094645), (140, 2034798), (168, 1695665), (170, 1675716), (204, 1396430), (210, 1356532), (238, 1196940), (255, 1117144), (280, 1017399), (340, 837858), (357, 797960), (408, 698215), (420, 678266), (476, 598470), (510, 558572), (595, 478776), (680, 418929), (714, 398980), (840, 339133), (952, 299235), (1020, 279286), (1190, 239388), (1428, 199490), (1785, 159592), (2040, 139643), (2380, 119694), (2856, 99745), (3570, 79796), (4760, 59847), (7140, 39898), (14280, 19949)]