78105412

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2177

約数の個数: 72

約数和(自身を含む): 183744288

約数和(自身を除く): 105638876

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 748, 833, 1078, 1309, 1666, 2131, 2156, 2618, 3332, 4262, 5236, 8524, 9163, 14917, 18326, 23441, 29834, 36227, 36652, 46882, 59668, 72454, 93764, 104419, 144908, 164087, 208838, 253589, 328174, 398497, 417676, 507178, 656348, 796994, 1014356, 1148609, 1593988, 1775123, 2297218, 2789479, 3550246, 4594436, 5578958, 7100492, 11157916, 19526353, 39052706, 78105412]

約数ペア:

[(1, 78105412), (2, 39052706), (4, 19526353), (7, 11157916), (11, 7100492), (14, 5578958), (17, 4594436), (22, 3550246), (28, 2789479), (34, 2297218), (44, 1775123), (49, 1593988), (68, 1148609), (77, 1014356), (98, 796994), (119, 656348), (154, 507178), (187, 417676), (196, 398497), (238, 328174), (308, 253589), (374, 208838), (476, 164087), (539, 144908), (748, 104419), (833, 93764), (1078, 72454), (1309, 59668), (1666, 46882), (2131, 36652), (2156, 36227), (2618, 29834), (3332, 23441), (4262, 18326), (5236, 14917), (8524, 9163)]