405308280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{259813}}^1$

素因数の和:259840

約数の個数: 64

約数和(自身を含む): 1309462560

約数和(自身を除く): 904154280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 259813, 519626, 779439, 1039252, 1299065, 1558878, 2078504, 2598130, 3117756, 3377569, 3897195, 5196260, 6235512, 6755138, 7794390, 10132707, 10392520, 13510276, 15588780, 16887845, 20265414, 27020552, 31177560, 33775690, 40530828, 50663535, 67551380, 81061656, 101327070, 135102760, 202654140, 405308280]

約数ペア:

[(1, 405308280), (2, 202654140), (3, 135102760), (4, 101327070), (5, 81061656), (6, 67551380), (8, 50663535), (10, 40530828), (12, 33775690), (13, 31177560), (15, 27020552), (20, 20265414), (24, 16887845), (26, 15588780), (30, 13510276), (39, 10392520), (40, 10132707), (52, 7794390), (60, 6755138), (65, 6235512), (78, 5196260), (104, 3897195), (120, 3377569), (130, 3117756), (156, 2598130), (195, 2078504), (260, 1558878), (312, 1299065), (390, 1039252), (520, 779439), (780, 519626), (1560, 259813)]