18936540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:161

約数の個数: 216

約数和(自身を含む): 70958160

約数和(自身を除く): 52021620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 113, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 226, 228, 245, 252, 266, 285, 294, 315, 339, 342, 380, 399, 420, 441, 452, 490, 532, 565, 570, 588, 630, 665, 678, 684, 735, 791, 798, 855, 882, 931, 980, 1017, 1130, 1140, 1197, 1260, 1330, 1356, 1470, 1582, 1596, 1695, 1710, 1764, 1862, 1995, 2034, 2147, 2205, 2260, 2373, 2394, 2660, 2793, 2940, 3164, 3390, 3420, 3724, 3955, 3990, 4068, 4294, 4410, 4655, 4746, 4788, 5085, 5537, 5586, 5985, 6441, 6780, 7119, 7910, 7980, 8379, 8588, 8820, 9310, 9492, 10170, 10735, 11074, 11172, 11865, 11970, 12882, 13965, 14238, 15029, 15820, 16611, 16758, 18620, 19323, 20340, 21470, 22148, 23730, 23940, 25764, 27685, 27930, 28476, 30058, 32205, 33222, 33516, 35595, 38646, 41895, 42940, 45087, 47460, 49833, 55370, 55860, 60116, 64410, 66444, 71190, 75145, 77292, 83055, 83790, 90174, 96615, 99666, 105203, 110740, 128820, 135261, 142380, 150290, 166110, 167580, 180348, 193230, 199332, 210406, 225435, 249165, 270522, 300580, 315609, 332220, 386460, 420812, 450870, 498330, 526015, 541044, 631218, 676305, 901740, 946827, 996660, 1052030, 1262436, 1352610, 1578045, 1893654, 2104060, 2705220, 3156090, 3787308, 4734135, 6312180, 9468270, 18936540]

約数ペア:

[(1, 18936540), (2, 9468270), (3, 6312180), (4, 4734135), (5, 3787308), (6, 3156090), (7, 2705220), (9, 2104060), (10, 1893654), (12, 1578045), (14, 1352610), (15, 1262436), (18, 1052030), (19, 996660), (20, 946827), (21, 901740), (28, 676305), (30, 631218), (35, 541044), (36, 526015), (38, 498330), (42, 450870), (45, 420812), (49, 386460), (57, 332220), (60, 315609), (63, 300580), (70, 270522), (76, 249165), (84, 225435), (90, 210406), (95, 199332), (98, 193230), (105, 180348), (113, 167580), (114, 166110), (126, 150290), (133, 142380), (140, 135261), (147, 128820), (171, 110740), (180, 105203), (190, 99666), (196, 96615), (210, 90174), (226, 83790), (228, 83055), (245, 77292), (252, 75145), (266, 71190), (285, 66444), (294, 64410), (315, 60116), (339, 55860), (342, 55370), (380, 49833), (399, 47460), (420, 45087), (441, 42940), (452, 41895), (490, 38646), (532, 35595), (565, 33516), (570, 33222), (588, 32205), (630, 30058), (665, 28476), (678, 27930), (684, 27685), (735, 25764), (791, 23940), (798, 23730), (855, 22148), (882, 21470), (931, 20340), (980, 19323), (1017, 18620), (1130, 16758), (1140, 16611), (1197, 15820), (1260, 15029), (1330, 14238), (1356, 13965), (1470, 12882), (1582, 11970), (1596, 11865), (1695, 11172), (1710, 11074), (1764, 10735), (1862, 10170), (1995, 9492), (2034, 9310), (2147, 8820), (2205, 8588), (2260, 8379), (2373, 7980), (2394, 7910), (2660, 7119), (2793, 6780), (2940, 6441), (3164, 5985), (3390, 5586), (3420, 5537), (3724, 5085), (3955, 4788), (3990, 4746), (4068, 4655), (4294, 4410)]