87890580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:894

約数の個数: 144

約数和(自身を含む): 290035200

約数和(自身を除く): 202144620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 829, 855, 930, 1116, 1140, 1178, 1395, 1658, 1710, 1767, 1860, 2356, 2487, 2790, 2945, 3316, 3420, 3534, 4145, 4974, 5301, 5580, 5890, 7068, 7461, 8290, 8835, 9948, 10602, 11780, 12435, 14922, 15751, 16580, 17670, 21204, 24870, 25699, 26505, 29844, 31502, 35340, 37305, 47253, 49740, 51398, 53010, 63004, 74610, 77097, 78755, 94506, 102796, 106020, 128495, 141759, 149220, 154194, 157510, 189012, 231291, 236265, 256990, 283518, 308388, 315020, 385485, 462582, 472530, 488281, 513980, 567036, 708795, 770970, 925164, 945060, 976562, 1156455, 1417590, 1464843, 1541940, 1953124, 2312910, 2441405, 2835180, 2929686, 4394529, 4625820, 4882810, 5859372, 7324215, 8789058, 9765620, 14648430, 17578116, 21972645, 29296860, 43945290, 87890580]

約数ペア:

[(1, 87890580), (2, 43945290), (3, 29296860), (4, 21972645), (5, 17578116), (6, 14648430), (9, 9765620), (10, 8789058), (12, 7324215), (15, 5859372), (18, 4882810), (19, 4625820), (20, 4394529), (30, 2929686), (31, 2835180), (36, 2441405), (38, 2312910), (45, 1953124), (57, 1541940), (60, 1464843), (62, 1417590), (76, 1156455), (90, 976562), (93, 945060), (95, 925164), (114, 770970), (124, 708795), (155, 567036), (171, 513980), (180, 488281), (186, 472530), (190, 462582), (228, 385485), (279, 315020), (285, 308388), (310, 283518), (342, 256990), (372, 236265), (380, 231291), (465, 189012), (558, 157510), (570, 154194), (589, 149220), (620, 141759), (684, 128495), (829, 106020), (855, 102796), (930, 94506), (1116, 78755), (1140, 77097), (1178, 74610), (1395, 63004), (1658, 53010), (1710, 51398), (1767, 49740), (1860, 47253), (2356, 37305), (2487, 35340), (2790, 31502), (2945, 29844), (3316, 26505), (3420, 25699), (3534, 24870), (4145, 21204), (4974, 17670), (5301, 16580), (5580, 15751), (5890, 14922), (7068, 12435), (7461, 11780), (8290, 10602), (8835, 9948)]