121913390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 238878720

約数和(自身を除く): 116965330

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 71, 142, 145, 155, 191, 290, 310, 355, 382, 710, 899, 955, 1798, 1910, 2059, 2201, 4118, 4402, 4495, 5539, 5921, 8990, 10295, 11005, 11078, 11842, 13561, 20590, 22010, 27122, 27695, 29605, 55390, 59210, 63829, 67805, 127658, 135610, 171709, 319145, 343418, 393269, 420391, 638290, 786538, 840782, 858545, 1717090, 1966345, 2101955, 3932690, 4203910, 12191339, 24382678, 60956695, 121913390]

約数ペア:

[(1, 121913390), (2, 60956695), (5, 24382678), (10, 12191339), (29, 4203910), (31, 3932690), (58, 2101955), (62, 1966345), (71, 1717090), (142, 858545), (145, 840782), (155, 786538), (191, 638290), (290, 420391), (310, 393269), (355, 343418), (382, 319145), (710, 171709), (899, 135610), (955, 127658), (1798, 67805), (1910, 63829), (2059, 59210), (2201, 55390), (4118, 29605), (4402, 27695), (4495, 27122), (5539, 22010), (5921, 20590), (8990, 13561), (10295, 11842), (11005, 11078)]