20043670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20598890

約数列:

[1, 2, 5, 10, 19, 31, 38, 41, 62, 82, 83, 95, 155, 166, 190, 205, 310, 410, 415, 589, 779, 830, 1178, 1271, 1558, 1577, 2542, 2573, 2945, 3154, 3403, 3895, 5146, 5890, 6355, 6806, 7790, 7885, 12710, 12865, 15770, 17015, 24149, 25730, 34030, 48298, 48887, 64657, 97774, 105493, 120745, 129314, 210986, 241490, 244435, 323285, 488870, 527465, 646570, 1054930, 2004367, 4008734, 10021835, 20043670]

約数ペア:

[(1, 20043670), (2, 10021835), (5, 4008734), (10, 2004367), (19, 1054930), (31, 646570), (38, 527465), (41, 488870), (62, 323285), (82, 244435), (83, 241490), (95, 210986), (155, 129314), (166, 120745), (190, 105493), (205, 97774), (310, 64657), (410, 48887), (415, 48298), (589, 34030), (779, 25730), (830, 24149), (1178, 17015), (1271, 15770), (1558, 12865), (1577, 12710), (2542, 7885), (2573, 7790), (2945, 6806), (3154, 6355), (3403, 5890), (3895, 5146)]