38878180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 95800320

約数和(自身を除く): 56922140

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 71, 76, 95, 110, 131, 142, 190, 209, 220, 262, 284, 355, 380, 418, 524, 655, 710, 781, 836, 1045, 1310, 1349, 1420, 1441, 1562, 2090, 2489, 2620, 2698, 2882, 3124, 3905, 4180, 4978, 5396, 5764, 6745, 7205, 7810, 9301, 9956, 12445, 13490, 14410, 14839, 15620, 18602, 24890, 26980, 27379, 28820, 29678, 37204, 46505, 49780, 54758, 59356, 74195, 93010, 102311, 109516, 136895, 148390, 176719, 186020, 204622, 273790, 296780, 353438, 409244, 511555, 547580, 706876, 883595, 1023110, 1767190, 1943909, 2046220, 3534380, 3887818, 7775636, 9719545, 19439090, 38878180]

約数ペア:

[(1, 38878180), (2, 19439090), (4, 9719545), (5, 7775636), (10, 3887818), (11, 3534380), (19, 2046220), (20, 1943909), (22, 1767190), (38, 1023110), (44, 883595), (55, 706876), (71, 547580), (76, 511555), (95, 409244), (110, 353438), (131, 296780), (142, 273790), (190, 204622), (209, 186020), (220, 176719), (262, 148390), (284, 136895), (355, 109516), (380, 102311), (418, 93010), (524, 74195), (655, 59356), (710, 54758), (781, 49780), (836, 46505), (1045, 37204), (1310, 29678), (1349, 28820), (1420, 27379), (1441, 26980), (1562, 24890), (2090, 18602), (2489, 15620), (2620, 14839), (2698, 14410), (2882, 13490), (3124, 12445), (3905, 9956), (4180, 9301), (4978, 7810), (5396, 7205), (5764, 6745)]