31580475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 58472448

約数和(自身を除く): 26891973

約数列:

[1, 3, 5, 15, 17, 25, 31, 47, 51, 75, 85, 93, 141, 155, 235, 255, 289, 425, 465, 527, 705, 775, 799, 867, 1175, 1275, 1445, 1457, 1581, 2325, 2397, 2635, 3525, 3995, 4335, 4371, 7225, 7285, 7905, 8959, 11985, 13175, 13583, 19975, 21675, 21855, 24769, 26877, 36425, 39525, 40749, 44795, 59925, 67915, 74307, 109275, 123845, 134385, 203745, 223975, 339575, 371535, 421073, 619225, 671925, 1018725, 1263219, 1857675, 2105365, 6316095, 10526825, 31580475]

約数ペア:

[(1, 31580475), (3, 10526825), (5, 6316095), (15, 2105365), (17, 1857675), (25, 1263219), (31, 1018725), (47, 671925), (51, 619225), (75, 421073), (85, 371535), (93, 339575), (141, 223975), (155, 203745), (235, 134385), (255, 123845), (289, 109275), (425, 74307), (465, 67915), (527, 59925), (705, 44795), (775, 40749), (799, 39525), (867, 36425), (1175, 26877), (1275, 24769), (1445, 21855), (1457, 21675), (1581, 19975), (2325, 13583), (2397, 13175), (2635, 11985), (3525, 8959), (3995, 7905), (4335, 7285), (4371, 7225)]