25361960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 68947200

約数和(自身を除く): 43585240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 151, 152, 170, 190, 221, 247, 260, 302, 323, 340, 380, 442, 494, 520, 604, 646, 680, 755, 760, 884, 988, 1105, 1208, 1235, 1292, 1510, 1615, 1768, 1963, 1976, 2210, 2470, 2567, 2584, 2869, 3020, 3230, 3926, 4199, 4420, 4940, 5134, 5738, 6040, 6460, 7852, 8398, 8840, 9815, 9880, 10268, 11476, 12835, 12920, 14345, 15704, 16796, 19630, 20536, 20995, 22952, 25670, 28690, 33371, 33592, 37297, 39260, 41990, 48773, 51340, 57380, 66742, 74594, 78520, 83980, 97546, 102680, 114760, 133484, 149188, 166855, 167960, 186485, 195092, 243865, 266968, 298376, 333710, 372970, 390184, 487730, 634049, 667420, 745940, 975460, 1268098, 1334840, 1491880, 1950920, 2536196, 3170245, 5072392, 6340490, 12680980, 25361960]

約数ペア:

[(1, 25361960), (2, 12680980), (4, 6340490), (5, 5072392), (8, 3170245), (10, 2536196), (13, 1950920), (17, 1491880), (19, 1334840), (20, 1268098), (26, 975460), (34, 745940), (38, 667420), (40, 634049), (52, 487730), (65, 390184), (68, 372970), (76, 333710), (85, 298376), (95, 266968), (104, 243865), (130, 195092), (136, 186485), (151, 167960), (152, 166855), (170, 149188), (190, 133484), (221, 114760), (247, 102680), (260, 97546), (302, 83980), (323, 78520), (340, 74594), (380, 66742), (442, 57380), (494, 51340), (520, 48773), (604, 41990), (646, 39260), (680, 37297), (755, 33592), (760, 33371), (884, 28690), (988, 25670), (1105, 22952), (1208, 20995), (1235, 20536), (1292, 19630), (1510, 16796), (1615, 15704), (1768, 14345), (1963, 12920), (1976, 12835), (2210, 11476), (2470, 10268), (2567, 9880), (2584, 9815), (2869, 8840), (3020, 8398), (3230, 7852), (3926, 6460), (4199, 6040), (4420, 5738), (4940, 5134)]