31788020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 77414400

約数和(自身を除く): 45626380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 59, 62, 79, 110, 118, 124, 155, 158, 220, 236, 295, 310, 316, 341, 395, 590, 620, 649, 682, 790, 869, 1180, 1298, 1364, 1580, 1705, 1738, 1829, 2449, 2596, 3245, 3410, 3476, 3658, 4345, 4661, 4898, 6490, 6820, 7316, 8690, 9145, 9322, 9796, 12245, 12980, 17380, 18290, 18644, 20119, 23305, 24490, 26939, 36580, 40238, 46610, 48980, 51271, 53878, 80476, 93220, 100595, 102542, 107756, 134695, 144491, 201190, 205084, 256355, 269390, 288982, 402380, 512710, 538780, 577964, 722455, 1025420, 1444910, 1589401, 2889820, 3178802, 6357604, 7947005, 15894010, 31788020]

約数ペア:

[(1, 31788020), (2, 15894010), (4, 7947005), (5, 6357604), (10, 3178802), (11, 2889820), (20, 1589401), (22, 1444910), (31, 1025420), (44, 722455), (55, 577964), (59, 538780), (62, 512710), (79, 402380), (110, 288982), (118, 269390), (124, 256355), (155, 205084), (158, 201190), (220, 144491), (236, 134695), (295, 107756), (310, 102542), (316, 100595), (341, 93220), (395, 80476), (590, 53878), (620, 51271), (649, 48980), (682, 46610), (790, 40238), (869, 36580), (1180, 26939), (1298, 24490), (1364, 23305), (1580, 20119), (1705, 18644), (1738, 18290), (1829, 17380), (2449, 12980), (2596, 12245), (3245, 9796), (3410, 9322), (3476, 9145), (3658, 8690), (4345, 7316), (4661, 6820), (4898, 6490)]