28135900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{941}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 68683104

約数和(自身を除く): 40547204

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 230, 260, 299, 325, 460, 575, 598, 650, 941, 1150, 1196, 1300, 1495, 1882, 2300, 2990, 3764, 4705, 5980, 7475, 9410, 12233, 14950, 18820, 21643, 23525, 24466, 29900, 43286, 47050, 48932, 61165, 86572, 94100, 108215, 122330, 216430, 244660, 281359, 305825, 432860, 541075, 562718, 611650, 1082150, 1125436, 1223300, 1406795, 2164300, 2813590, 5627180, 7033975, 14067950, 28135900]

約数ペア:

[(1, 28135900), (2, 14067950), (4, 7033975), (5, 5627180), (10, 2813590), (13, 2164300), (20, 1406795), (23, 1223300), (25, 1125436), (26, 1082150), (46, 611650), (50, 562718), (52, 541075), (65, 432860), (92, 305825), (100, 281359), (115, 244660), (130, 216430), (230, 122330), (260, 108215), (299, 94100), (325, 86572), (460, 61165), (575, 48932), (598, 47050), (650, 43286), (941, 29900), (1150, 24466), (1196, 23525), (1300, 21643), (1495, 18820), (1882, 14950), (2300, 12233), (2990, 9410), (3764, 7475), (4705, 5980)]