31266620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 83220480

約数和(自身を除く): 51953860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 79, 110, 140, 154, 158, 220, 257, 308, 316, 385, 395, 514, 553, 770, 790, 869, 1028, 1106, 1285, 1540, 1580, 1738, 1799, 2212, 2570, 2765, 2827, 3476, 3598, 4345, 5140, 5530, 5654, 6083, 7196, 8690, 8995, 11060, 11308, 12166, 14135, 17380, 17990, 19789, 20303, 24332, 28270, 30415, 35980, 39578, 40606, 56540, 60830, 79156, 81212, 98945, 101515, 121660, 142121, 197890, 203030, 223333, 284242, 395780, 406060, 446666, 568484, 710605, 893332, 1116665, 1421210, 1563331, 2233330, 2842420, 3126662, 4466660, 6253324, 7816655, 15633310, 31266620]

約数ペア:

[(1, 31266620), (2, 15633310), (4, 7816655), (5, 6253324), (7, 4466660), (10, 3126662), (11, 2842420), (14, 2233330), (20, 1563331), (22, 1421210), (28, 1116665), (35, 893332), (44, 710605), (55, 568484), (70, 446666), (77, 406060), (79, 395780), (110, 284242), (140, 223333), (154, 203030), (158, 197890), (220, 142121), (257, 121660), (308, 101515), (316, 98945), (385, 81212), (395, 79156), (514, 60830), (553, 56540), (770, 40606), (790, 39578), (869, 35980), (1028, 30415), (1106, 28270), (1285, 24332), (1540, 20303), (1580, 19789), (1738, 17990), (1799, 17380), (2212, 14135), (2570, 12166), (2765, 11308), (2827, 11060), (3476, 8995), (3598, 8690), (4345, 7196), (5140, 6083), (5530, 5654)]