28427880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18223}}^1$

素因数の和:18250

約数の個数: 64

約数和(自身を含む): 91848960

約数和(自身を除く): 63421080

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, 18223, 36446, 54669, 72892, 91115, 109338, 145784, 182230, 218676, 236899, 273345, 364460, 437352, 473798, 546690, 710697, 728920, 947596, 1093380, 1184495, 1421394, 1895192, 2186760, 2368990, 2842788, 3553485, 4737980, 5685576, 7106970, 9475960, 14213940, 28427880]

約数ペア:

[(1, 28427880), (2, 14213940), (3, 9475960), (4, 7106970), (5, 5685576), (6, 4737980), (8, 3553485), (10, 2842788), (12, 2368990), (13, 2186760), (15, 1895192), (20, 1421394), (24, 1184495), (26, 1093380), (30, 947596), (39, 728920), (40, 710697), (52, 546690), (60, 473798), (65, 437352), (78, 364460), (104, 273345), (120, 236899), (130, 218676), (156, 182230), (195, 145784), (260, 109338), (312, 91115), (390, 72892), (520, 54669), (780, 36446), (1560, 18223)]