28418520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18217}}^1$

素因数の和:18244

約数の個数: 64

約数和(自身を含む): 91818720

約数和(自身を除く): 63400200

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, 18217, 36434, 54651, 72868, 91085, 109302, 145736, 182170, 218604, 236821, 273255, 364340, 437208, 473642, 546510, 710463, 728680, 947284, 1093020, 1184105, 1420926, 1894568, 2186040, 2368210, 2841852, 3552315, 4736420, 5683704, 7104630, 9472840, 14209260, 28418520]

約数ペア:

[(1, 28418520), (2, 14209260), (3, 9472840), (4, 7104630), (5, 5683704), (6, 4736420), (8, 3552315), (10, 2841852), (12, 2368210), (13, 2186040), (15, 1894568), (20, 1420926), (24, 1184105), (26, 1093020), (30, 947284), (39, 728680), (40, 710463), (52, 546510), (60, 473642), (65, 437208), (78, 364340), (104, 273255), (120, 236821), (130, 218604), (156, 182170), (195, 145736), (260, 109302), (312, 91085), (390, 72868), (520, 54651), (780, 36434), (1560, 18217)]