220187500

素因数分解:

$2^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:318

約数の個数: 84

約数和(自身を含む): 520618336

約数和(自身を除く): 300430836

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 271, 325, 500, 542, 625, 650, 1084, 1250, 1300, 1355, 1625, 2500, 2710, 3125, 3250, 3523, 5420, 6250, 6500, 6775, 7046, 8125, 12500, 13550, 14092, 15625, 16250, 17615, 27100, 31250, 32500, 33875, 35230, 40625, 62500, 67750, 70460, 81250, 88075, 135500, 162500, 169375, 176150, 203125, 338750, 352300, 406250, 440375, 677500, 812500, 846875, 880750, 1693750, 1761500, 2201875, 3387500, 4234375, 4403750, 8468750, 8807500, 11009375, 16937500, 22018750, 44037500, 55046875, 110093750, 220187500]

約数ペア:

[(1, 220187500), (2, 110093750), (4, 55046875), (5, 44037500), (10, 22018750), (13, 16937500), (20, 11009375), (25, 8807500), (26, 8468750), (50, 4403750), (52, 4234375), (65, 3387500), (100, 2201875), (125, 1761500), (130, 1693750), (250, 880750), (260, 846875), (271, 812500), (325, 677500), (500, 440375), (542, 406250), (625, 352300), (650, 338750), (1084, 203125), (1250, 176150), (1300, 169375), (1355, 162500), (1625, 135500), (2500, 88075), (2710, 81250), (3125, 70460), (3250, 67750), (3523, 62500), (5420, 40625), (6250, 35230), (6500, 33875), (6775, 32500), (7046, 31250), (8125, 27100), (12500, 17615), (13550, 16250), (14092, 15625)]