208388625

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 372183552

約数和(自身を除く): 163794927

約数列:

[1, 3, 5, 15, 23, 25, 37, 69, 75, 111, 115, 125, 185, 345, 375, 555, 575, 653, 851, 925, 1725, 1959, 2553, 2775, 2875, 3265, 4255, 4625, 8625, 9795, 12765, 13875, 15019, 16325, 21275, 24161, 45057, 48975, 63825, 72483, 75095, 81625, 106375, 120805, 225285, 244875, 319125, 362415, 375475, 555703, 604025, 1126425, 1667109, 1812075, 1877375, 2778515, 3020125, 5632125, 8335545, 9060375, 13892575, 41677725, 69462875, 208388625]

約数ペア:

[(1, 208388625), (3, 69462875), (5, 41677725), (15, 13892575), (23, 9060375), (25, 8335545), (37, 5632125), (69, 3020125), (75, 2778515), (111, 1877375), (115, 1812075), (125, 1667109), (185, 1126425), (345, 604025), (375, 555703), (555, 375475), (575, 362415), (653, 319125), (851, 244875), (925, 225285), (1725, 120805), (1959, 106375), (2553, 81625), (2775, 75095), (2875, 72483), (3265, 63825), (4255, 48975), (4625, 45057), (8625, 24161), (9795, 21275), (12765, 16325), (13875, 15019)]