78642420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21487}}^1$

素因数の和:21560

約数の個数: 48

約数和(自身を含む): 223819008

約数和(自身を除く): 145176588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 21487, 42974, 64461, 85948, 107435, 128922, 214870, 257844, 322305, 429740, 644610, 1289220, 1310707, 2621414, 3932121, 5242828, 6553535, 7864242, 13107070, 15728484, 19660605, 26214140, 39321210, 78642420]

約数ペア:

[(1, 78642420), (2, 39321210), (3, 26214140), (4, 19660605), (5, 15728484), (6, 13107070), (10, 7864242), (12, 6553535), (15, 5242828), (20, 3932121), (30, 2621414), (60, 1310707), (61, 1289220), (122, 644610), (183, 429740), (244, 322305), (305, 257844), (366, 214870), (610, 128922), (732, 107435), (915, 85948), (1220, 64461), (1830, 42974), (3660, 21487)]