31081439480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{275447}}^1$

素因数の和:275509

約数の個数: 128

約数和(自身を含む): 88848506880

約数和(自身を除く): 57767067400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 2015, 2170, 2821, 3224, 3640, 4030, 4340, 5642, 8060, 8680, 11284, 14105, 16120, 22568, 28210, 56420, 112840, 275447, 550894, 1101788, 1377235, 1928129, 2203576, 2754470, 3580811, 3856258, 5508940, 7161622, 7712516, 8538857, 9640645, 11017880, 14323244, 15425032, 17077714, 17904055, 19281290, 25065677, 28646488, 34155428, 35808110, 38562580, 42694285, 50131354, 59771999, 68310856, 71616220, 77125160, 85388570, 100262708, 111005141, 119543998, 125328385, 143232440, 170777140, 200525416, 222010282, 239087996, 250656770, 298859995, 341554280, 444020564, 478175992, 501313540, 555025705, 597719990, 777035987, 888041128, 1002627080, 1110051410, 1195439980, 1554071974, 2220102820, 2390879960, 3108143948, 3885179935, 4440205640, 6216287896, 7770359870, 15540719740, 31081439480]

約数ペア:

[(1, 31081439480), (2, 15540719740), (4, 7770359870), (5, 6216287896), (7, 4440205640), (8, 3885179935), (10, 3108143948), (13, 2390879960), (14, 2220102820), (20, 1554071974), (26, 1195439980), (28, 1110051410), (31, 1002627080), (35, 888041128), (40, 777035987), (52, 597719990), (56, 555025705), (62, 501313540), (65, 478175992), (70, 444020564), (91, 341554280), (104, 298859995), (124, 250656770), (130, 239087996), (140, 222010282), (155, 200525416), (182, 170777140), (217, 143232440), (248, 125328385), (260, 119543998), (280, 111005141), (310, 100262708), (364, 85388570), (403, 77125160), (434, 71616220), (455, 68310856), (520, 59771999), (620, 50131354), (728, 42694285), (806, 38562580), (868, 35808110), (910, 34155428), (1085, 28646488), (1240, 25065677), (1612, 19281290), (1736, 17904055), (1820, 17077714), (2015, 15425032), (2170, 14323244), (2821, 11017880), (3224, 9640645), (3640, 8538857), (4030, 7712516), (4340, 7161622), (5642, 5508940), (8060, 3856258), (8680, 3580811), (11284, 2754470), (14105, 2203576), (16120, 1928129), (22568, 1377235), (28210, 1101788), (56420, 550894), (112840, 275447)]