79437280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 204186528

約数和(自身を除く): 124749248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 181, 208, 211, 260, 362, 416, 422, 520, 724, 844, 905, 1040, 1055, 1448, 1688, 1810, 2080, 2110, 2353, 2743, 2896, 3376, 3620, 4220, 4706, 5486, 5792, 6752, 7240, 8440, 9412, 10972, 11765, 13715, 14480, 16880, 18824, 21944, 23530, 27430, 28960, 33760, 37648, 38191, 43888, 47060, 54860, 75296, 76382, 87776, 94120, 109720, 152764, 188240, 190955, 219440, 305528, 376480, 381910, 438880, 496483, 611056, 763820, 992966, 1222112, 1527640, 1985932, 2482415, 3055280, 3971864, 4964830, 6110560, 7943728, 9929660, 15887456, 19859320, 39718640, 79437280]

約数ペア:

[(1, 79437280), (2, 39718640), (4, 19859320), (5, 15887456), (8, 9929660), (10, 7943728), (13, 6110560), (16, 4964830), (20, 3971864), (26, 3055280), (32, 2482415), (40, 1985932), (52, 1527640), (65, 1222112), (80, 992966), (104, 763820), (130, 611056), (160, 496483), (181, 438880), (208, 381910), (211, 376480), (260, 305528), (362, 219440), (416, 190955), (422, 188240), (520, 152764), (724, 109720), (844, 94120), (905, 87776), (1040, 76382), (1055, 75296), (1448, 54860), (1688, 47060), (1810, 43888), (2080, 38191), (2110, 37648), (2353, 33760), (2743, 28960), (2896, 27430), (3376, 23530), (3620, 21944), (4220, 18824), (4706, 16880), (5486, 14480), (5792, 13715), (6752, 11765), (7240, 10972), (8440, 9412)]