64781925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 122536800

約数和(自身を除く): 57754875

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 169, 195, 247, 269, 285, 325, 475, 507, 741, 807, 845, 975, 1235, 1345, 1425, 2535, 3211, 3497, 3705, 4035, 4225, 5111, 6175, 6725, 9633, 10491, 12675, 15333, 16055, 17485, 18525, 20175, 25555, 45461, 48165, 52455, 66443, 76665, 80275, 87425, 127775, 136383, 199329, 227305, 240825, 262275, 332215, 383325, 681915, 863759, 996645, 1136525, 1661075, 2591277, 3409575, 4318795, 4983225, 12956385, 21593975, 64781925]

約数ペア:

[(1, 64781925), (3, 21593975), (5, 12956385), (13, 4983225), (15, 4318795), (19, 3409575), (25, 2591277), (39, 1661075), (57, 1136525), (65, 996645), (75, 863759), (95, 681915), (169, 383325), (195, 332215), (247, 262275), (269, 240825), (285, 227305), (325, 199329), (475, 136383), (507, 127775), (741, 87425), (807, 80275), (845, 76665), (975, 66443), (1235, 52455), (1345, 48165), (1425, 45461), (2535, 25555), (3211, 20175), (3497, 18525), (3705, 17485), (4035, 16055), (4225, 15333), (5111, 12675), (6175, 10491), (6725, 9633)]