28764840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18439}}^1$

素因数の和:18466

約数の個数: 64

約数和(自身を含む): 92937600

約数和(自身を除く): 64172760

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, 18439, 36878, 55317, 73756, 92195, 110634, 147512, 184390, 221268, 239707, 276585, 368780, 442536, 479414, 553170, 719121, 737560, 958828, 1106340, 1198535, 1438242, 1917656, 2212680, 2397070, 2876484, 3595605, 4794140, 5752968, 7191210, 9588280, 14382420, 28764840]

約数ペア:

[(1, 28764840), (2, 14382420), (3, 9588280), (4, 7191210), (5, 5752968), (6, 4794140), (8, 3595605), (10, 2876484), (12, 2397070), (13, 2212680), (15, 1917656), (20, 1438242), (24, 1198535), (26, 1106340), (30, 958828), (39, 737560), (40, 719121), (52, 553170), (60, 479414), (65, 442536), (78, 368780), (104, 276585), (120, 239707), (130, 221268), (156, 184390), (195, 147512), (260, 110634), (312, 92195), (390, 73756), (520, 55317), (780, 36878), (1560, 18439)]