28555020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12203}}^1$

素因数の和:12231

約数の個数: 72

約数和(自身を含む): 93287376

約数和(自身を除く): 64732356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 12203, 24406, 36609, 48812, 61015, 73218, 109827, 122030, 146436, 158639, 183045, 219654, 244060, 317278, 366090, 439308, 475917, 549135, 634556, 732180, 793195, 951834, 1098270, 1427751, 1586390, 1903668, 2196540, 2379585, 2855502, 3172780, 4759170, 5711004, 7138755, 9518340, 14277510, 28555020]

約数ペア:

[(1, 28555020), (2, 14277510), (3, 9518340), (4, 7138755), (5, 5711004), (6, 4759170), (9, 3172780), (10, 2855502), (12, 2379585), (13, 2196540), (15, 1903668), (18, 1586390), (20, 1427751), (26, 1098270), (30, 951834), (36, 793195), (39, 732180), (45, 634556), (52, 549135), (60, 475917), (65, 439308), (78, 366090), (90, 317278), (117, 244060), (130, 219654), (156, 183045), (180, 158639), (195, 146436), (234, 122030), (260, 109827), (390, 73218), (468, 61015), (585, 48812), (780, 36609), (1170, 24406), (2340, 12203)]