25420980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 81164160

約数和(自身を除く): 55743180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 109, 115, 130, 138, 156, 169, 195, 218, 230, 260, 276, 299, 327, 338, 345, 390, 436, 460, 507, 545, 598, 654, 676, 690, 780, 845, 897, 1014, 1090, 1196, 1308, 1380, 1417, 1495, 1635, 1690, 1794, 2028, 2180, 2507, 2535, 2834, 2990, 3270, 3380, 3588, 3887, 4251, 4485, 5014, 5070, 5668, 5980, 6540, 7085, 7521, 7774, 8502, 8970, 10028, 10140, 11661, 12535, 14170, 15042, 15548, 17004, 17940, 18421, 19435, 21255, 23322, 25070, 28340, 30084, 32591, 36842, 37605, 38870, 42510, 46644, 50140, 55263, 58305, 65182, 73684, 75210, 77740, 85020, 92105, 97773, 110526, 116610, 130364, 150420, 162955, 184210, 195546, 221052, 233220, 276315, 325910, 368420, 391092, 423683, 488865, 552630, 651820, 847366, 977730, 1105260, 1271049, 1694732, 1955460, 2118415, 2542098, 4236830, 5084196, 6355245, 8473660, 12710490, 25420980]

約数ペア:

[(1, 25420980), (2, 12710490), (3, 8473660), (4, 6355245), (5, 5084196), (6, 4236830), (10, 2542098), (12, 2118415), (13, 1955460), (15, 1694732), (20, 1271049), (23, 1105260), (26, 977730), (30, 847366), (39, 651820), (46, 552630), (52, 488865), (60, 423683), (65, 391092), (69, 368420), (78, 325910), (92, 276315), (109, 233220), (115, 221052), (130, 195546), (138, 184210), (156, 162955), (169, 150420), (195, 130364), (218, 116610), (230, 110526), (260, 97773), (276, 92105), (299, 85020), (327, 77740), (338, 75210), (345, 73684), (390, 65182), (436, 58305), (460, 55263), (507, 50140), (545, 46644), (598, 42510), (654, 38870), (676, 37605), (690, 36842), (780, 32591), (845, 30084), (897, 28340), (1014, 25070), (1090, 23322), (1196, 21255), (1308, 19435), (1380, 18421), (1417, 17940), (1495, 17004), (1635, 15548), (1690, 15042), (1794, 14170), (2028, 12535), (2180, 11661), (2507, 10140), (2535, 10028), (2834, 8970), (2990, 8502), (3270, 7774), (3380, 7521), (3588, 7085), (3887, 6540), (4251, 5980), (4485, 5668), (5014, 5070)]