28188420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 86365440

約数和(自身を除く): 58177020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 71, 78, 130, 142, 156, 195, 213, 260, 284, 355, 390, 426, 509, 710, 780, 852, 923, 1018, 1065, 1420, 1527, 1846, 2036, 2130, 2545, 2769, 3054, 3692, 4260, 4615, 5090, 5538, 6108, 6617, 7635, 9230, 10180, 11076, 13234, 13845, 15270, 18460, 19851, 26468, 27690, 30540, 33085, 36139, 39702, 55380, 66170, 72278, 79404, 99255, 108417, 132340, 144556, 180695, 198510, 216834, 361390, 397020, 433668, 469807, 542085, 722780, 939614, 1084170, 1409421, 1879228, 2168340, 2349035, 2818842, 4698070, 5637684, 7047105, 9396140, 14094210, 28188420]

約数ペア:

[(1, 28188420), (2, 14094210), (3, 9396140), (4, 7047105), (5, 5637684), (6, 4698070), (10, 2818842), (12, 2349035), (13, 2168340), (15, 1879228), (20, 1409421), (26, 1084170), (30, 939614), (39, 722780), (52, 542085), (60, 469807), (65, 433668), (71, 397020), (78, 361390), (130, 216834), (142, 198510), (156, 180695), (195, 144556), (213, 132340), (260, 108417), (284, 99255), (355, 79404), (390, 72278), (426, 66170), (509, 55380), (710, 39702), (780, 36139), (852, 33085), (923, 30540), (1018, 27690), (1065, 26468), (1420, 19851), (1527, 18460), (1846, 15270), (2036, 13845), (2130, 13234), (2545, 11076), (2769, 10180), (3054, 9230), (3692, 7635), (4260, 6617), (4615, 6108), (5090, 5538)]