813357890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 1577197440

約数和(自身を除く): 763839550

約数列:

[1, 2, 5, 10, 19, 38, 67, 95, 134, 181, 190, 335, 353, 362, 670, 706, 905, 1273, 1765, 1810, 2546, 3439, 3530, 6365, 6707, 6878, 12127, 12730, 13414, 17195, 23651, 24254, 33535, 34390, 47302, 60635, 63893, 67070, 118255, 121270, 127786, 230413, 236510, 319465, 449369, 460826, 638930, 898738, 1152065, 1213967, 2246845, 2304130, 2427934, 4280831, 4493690, 6069835, 8561662, 12139670, 21404155, 42808310, 81335789, 162671578, 406678945, 813357890]

約数ペア:

[(1, 813357890), (2, 406678945), (5, 162671578), (10, 81335789), (19, 42808310), (38, 21404155), (67, 12139670), (95, 8561662), (134, 6069835), (181, 4493690), (190, 4280831), (335, 2427934), (353, 2304130), (362, 2246845), (670, 1213967), (706, 1152065), (905, 898738), (1273, 638930), (1765, 460826), (1810, 449369), (2546, 319465), (3439, 236510), (3530, 230413), (6365, 127786), (6707, 121270), (6878, 118255), (12127, 67070), (12730, 63893), (13414, 60635), (17195, 47302), (23651, 34390), (24254, 33535)]