28195700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:114

約数の個数: 108

約数和(自身を含む): 70560588

約数和(自身を除く): 42364888

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 41, 46, 50, 52, 65, 82, 92, 100, 115, 130, 164, 205, 230, 260, 299, 325, 410, 460, 529, 533, 575, 598, 650, 820, 943, 1025, 1058, 1066, 1150, 1196, 1300, 1495, 1886, 2050, 2116, 2132, 2300, 2645, 2665, 2990, 3772, 4100, 4715, 5290, 5330, 5980, 6877, 7475, 9430, 10580, 10660, 12259, 13225, 13325, 13754, 14950, 18860, 21689, 23575, 24518, 26450, 26650, 27508, 29900, 34385, 43378, 47150, 49036, 52900, 53300, 61295, 68770, 86756, 94300, 108445, 122590, 137540, 171925, 216890, 245180, 281957, 306475, 343850, 433780, 542225, 563914, 612950, 687700, 1084450, 1127828, 1225900, 1409785, 2168900, 2819570, 5639140, 7048925, 14097850, 28195700]

約数ペア:

[(1, 28195700), (2, 14097850), (4, 7048925), (5, 5639140), (10, 2819570), (13, 2168900), (20, 1409785), (23, 1225900), (25, 1127828), (26, 1084450), (41, 687700), (46, 612950), (50, 563914), (52, 542225), (65, 433780), (82, 343850), (92, 306475), (100, 281957), (115, 245180), (130, 216890), (164, 171925), (205, 137540), (230, 122590), (260, 108445), (299, 94300), (325, 86756), (410, 68770), (460, 61295), (529, 53300), (533, 52900), (575, 49036), (598, 47150), (650, 43378), (820, 34385), (943, 29900), (1025, 27508), (1058, 26650), (1066, 26450), (1150, 24518), (1196, 23575), (1300, 21689), (1495, 18860), (1886, 14950), (2050, 13754), (2116, 13325), (2132, 13225), (2300, 12259), (2645, 10660), (2665, 10580), (2990, 9430), (3772, 7475), (4100, 6877), (4715, 5980), (5290, 5330)]