20501190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{631}}^1$

素因数の和:682

約数の個数: 72

約数和(自身を含む): 56345328

約数和(自身を除く): 35844138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 361, 570, 631, 722, 855, 1083, 1262, 1710, 1805, 1893, 2166, 3155, 3249, 3610, 3786, 5415, 5679, 6310, 6498, 9465, 10830, 11358, 11989, 16245, 18930, 23978, 28395, 32490, 35967, 56790, 59945, 71934, 107901, 119890, 179835, 215802, 227791, 359670, 455582, 539505, 683373, 1079010, 1138955, 1366746, 2050119, 2277910, 3416865, 4100238, 6833730, 10250595, 20501190]

約数ペア:

[(1, 20501190), (2, 10250595), (3, 6833730), (5, 4100238), (6, 3416865), (9, 2277910), (10, 2050119), (15, 1366746), (18, 1138955), (19, 1079010), (30, 683373), (38, 539505), (45, 455582), (57, 359670), (90, 227791), (95, 215802), (114, 179835), (171, 119890), (190, 107901), (285, 71934), (342, 59945), (361, 56790), (570, 35967), (631, 32490), (722, 28395), (855, 23978), (1083, 18930), (1262, 16245), (1710, 11989), (1805, 11358), (1893, 10830), (2166, 9465), (3155, 6498), (3249, 6310), (3610, 5679), (3786, 5415)]