20329430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 42923520

約数和(自身を除く): 22594090

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 71, 95, 110, 137, 142, 190, 209, 274, 355, 418, 685, 710, 781, 1045, 1349, 1370, 1507, 1562, 2090, 2603, 2698, 3014, 3905, 5206, 6745, 7535, 7810, 9727, 13015, 13490, 14839, 15070, 19454, 26030, 28633, 29678, 48635, 57266, 74195, 97270, 106997, 143165, 148390, 184813, 213994, 286330, 369626, 534985, 924065, 1069970, 1848130, 2032943, 4065886, 10164715, 20329430]

約数ペア:

[(1, 20329430), (2, 10164715), (5, 4065886), (10, 2032943), (11, 1848130), (19, 1069970), (22, 924065), (38, 534985), (55, 369626), (71, 286330), (95, 213994), (110, 184813), (137, 148390), (142, 143165), (190, 106997), (209, 97270), (274, 74195), (355, 57266), (418, 48635), (685, 29678), (710, 28633), (781, 26030), (1045, 19454), (1349, 15070), (1370, 14839), (1507, 13490), (1562, 13015), (2090, 9727), (2603, 7810), (2698, 7535), (3014, 6745), (3905, 5206)]