205312500

素因数分解:

$2^2\times 3^2\times 5^7\times {\mathrm{73}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 657615504

約数和(自身を除く): 452303004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 73, 75, 90, 100, 125, 146, 150, 180, 219, 225, 250, 292, 300, 365, 375, 438, 450, 500, 625, 657, 730, 750, 876, 900, 1095, 1125, 1250, 1314, 1460, 1500, 1825, 1875, 2190, 2250, 2500, 2628, 3125, 3285, 3650, 3750, 4380, 4500, 5475, 5625, 6250, 6570, 7300, 7500, 9125, 9375, 10950, 11250, 12500, 13140, 15625, 16425, 18250, 18750, 21900, 22500, 27375, 28125, 31250, 32850, 36500, 37500, 45625, 46875, 54750, 56250, 62500, 65700, 78125, 82125, 91250, 93750, 109500, 112500, 136875, 140625, 156250, 164250, 182500, 187500, 228125, 234375, 273750, 281250, 312500, 328500, 410625, 456250, 468750, 547500, 562500, 684375, 703125, 821250, 912500, 937500, 1140625, 1368750, 1406250, 1642500, 2053125, 2281250, 2737500, 2812500, 3421875, 4106250, 4562500, 5703125, 6843750, 8212500, 10265625, 11406250, 13687500, 17109375, 20531250, 22812500, 34218750, 41062500, 51328125, 68437500, 102656250, 205312500]

約数ペア:

[(1, 205312500), (2, 102656250), (3, 68437500), (4, 51328125), (5, 41062500), (6, 34218750), (9, 22812500), (10, 20531250), (12, 17109375), (15, 13687500), (18, 11406250), (20, 10265625), (25, 8212500), (30, 6843750), (36, 5703125), (45, 4562500), (50, 4106250), (60, 3421875), (73, 2812500), (75, 2737500), (90, 2281250), (100, 2053125), (125, 1642500), (146, 1406250), (150, 1368750), (180, 1140625), (219, 937500), (225, 912500), (250, 821250), (292, 703125), (300, 684375), (365, 562500), (375, 547500), (438, 468750), (450, 456250), (500, 410625), (625, 328500), (657, 312500), (730, 281250), (750, 273750), (876, 234375), (900, 228125), (1095, 187500), (1125, 182500), (1250, 164250), (1314, 156250), (1460, 140625), (1500, 136875), (1825, 112500), (1875, 109500), (2190, 93750), (2250, 91250), (2500, 82125), (2628, 78125), (3125, 65700), (3285, 62500), (3650, 56250), (3750, 54750), (4380, 46875), (4500, 45625), (5475, 37500), (5625, 36500), (6250, 32850), (6570, 31250), (7300, 28125), (7500, 27375), (9125, 22500), (9375, 21900), (10950, 18750), (11250, 18250), (12500, 16425), (13140, 15625)]