90358640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 217191456

約数和(自身を除く): 126832816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 101, 106, 202, 211, 212, 265, 404, 422, 424, 505, 530, 808, 844, 848, 1010, 1055, 1060, 1616, 1688, 2020, 2110, 2120, 3376, 4040, 4220, 4240, 5353, 8080, 8440, 10706, 11183, 16880, 21311, 21412, 22366, 26765, 42622, 42824, 44732, 53530, 55915, 85244, 85648, 89464, 106555, 107060, 111830, 170488, 178928, 213110, 214120, 223660, 340976, 426220, 428240, 447320, 852440, 894640, 1129483, 1704880, 2258966, 4517932, 5647415, 9035864, 11294830, 18071728, 22589660, 45179320, 90358640]

約数ペア:

[(1, 90358640), (2, 45179320), (4, 22589660), (5, 18071728), (8, 11294830), (10, 9035864), (16, 5647415), (20, 4517932), (40, 2258966), (53, 1704880), (80, 1129483), (101, 894640), (106, 852440), (202, 447320), (211, 428240), (212, 426220), (265, 340976), (404, 223660), (422, 214120), (424, 213110), (505, 178928), (530, 170488), (808, 111830), (844, 107060), (848, 106555), (1010, 89464), (1055, 85648), (1060, 85244), (1616, 55915), (1688, 53530), (2020, 44732), (2110, 42824), (2120, 42622), (3376, 26765), (4040, 22366), (4220, 21412), (4240, 21311), (5353, 16880), (8080, 11183), (8440, 10706)]