128216720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4099}}^1$

素因数の和:4152

約数の個数: 80

約数和(自身を含む): 329443200

約数和(自身を除く): 201226480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 3128, 3910, 4099, 6256, 7820, 8198, 15640, 16396, 20495, 31280, 32792, 40990, 65584, 69683, 81980, 94277, 139366, 163960, 188554, 278732, 327920, 348415, 377108, 471385, 557464, 696830, 754216, 942770, 1114928, 1393660, 1508432, 1602709, 1885540, 2787320, 3205418, 3771080, 5574640, 6410836, 7542160, 8013545, 12821672, 16027090, 25643344, 32054180, 64108360, 128216720]

約数ペア:

[(1, 128216720), (2, 64108360), (4, 32054180), (5, 25643344), (8, 16027090), (10, 12821672), (16, 8013545), (17, 7542160), (20, 6410836), (23, 5574640), (34, 3771080), (40, 3205418), (46, 2787320), (68, 1885540), (80, 1602709), (85, 1508432), (92, 1393660), (115, 1114928), (136, 942770), (170, 754216), (184, 696830), (230, 557464), (272, 471385), (340, 377108), (368, 348415), (391, 327920), (460, 278732), (680, 188554), (782, 163960), (920, 139366), (1360, 94277), (1564, 81980), (1840, 69683), (1955, 65584), (3128, 40990), (3910, 32792), (4099, 31280), (6256, 20495), (7820, 16396), (8198, 15640)]