20077460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28693612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 47, 52, 53, 62, 65, 94, 106, 124, 130, 155, 188, 212, 235, 260, 265, 310, 403, 470, 530, 611, 620, 689, 806, 940, 1060, 1222, 1378, 1457, 1612, 1643, 2015, 2444, 2491, 2756, 2914, 3055, 3286, 3445, 4030, 4982, 5828, 6110, 6572, 6890, 7285, 8060, 8215, 9964, 12220, 12455, 13780, 14570, 16430, 18941, 21359, 24910, 29140, 32383, 32860, 37882, 42718, 49820, 64766, 75764, 77221, 85436, 94705, 106795, 129532, 154442, 161915, 189410, 213590, 308884, 323830, 378820, 386105, 427180, 647660, 772210, 1003873, 1544420, 2007746, 4015492, 5019365, 10038730, 20077460]

約数ペア:

[(1, 20077460), (2, 10038730), (4, 5019365), (5, 4015492), (10, 2007746), (13, 1544420), (20, 1003873), (26, 772210), (31, 647660), (47, 427180), (52, 386105), (53, 378820), (62, 323830), (65, 308884), (94, 213590), (106, 189410), (124, 161915), (130, 154442), (155, 129532), (188, 106795), (212, 94705), (235, 85436), (260, 77221), (265, 75764), (310, 64766), (403, 49820), (470, 42718), (530, 37882), (611, 32860), (620, 32383), (689, 29140), (806, 24910), (940, 21359), (1060, 18941), (1222, 16430), (1378, 14570), (1457, 13780), (1612, 12455), (1643, 12220), (2015, 9964), (2444, 8215), (2491, 8060), (2756, 7285), (2914, 6890), (3055, 6572), (3286, 6110), (3445, 5828), (4030, 4982)]