142391990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 288852480

約数和(自身を除く): 146460490

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 89, 130, 155, 178, 310, 397, 403, 445, 794, 806, 890, 1157, 1985, 2015, 2314, 2759, 3970, 4030, 5161, 5518, 5785, 10322, 11570, 12307, 13795, 24614, 25805, 27590, 35333, 35867, 51610, 61535, 70666, 71734, 123070, 159991, 176665, 179335, 319982, 353330, 358670, 459329, 799955, 918658, 1095323, 1599910, 2190646, 2296645, 4593290, 5476615, 10953230, 14239199, 28478398, 71195995, 142391990]

約数ペア:

[(1, 142391990), (2, 71195995), (5, 28478398), (10, 14239199), (13, 10953230), (26, 5476615), (31, 4593290), (62, 2296645), (65, 2190646), (89, 1599910), (130, 1095323), (155, 918658), (178, 799955), (310, 459329), (397, 358670), (403, 353330), (445, 319982), (794, 179335), (806, 176665), (890, 159991), (1157, 123070), (1985, 71734), (2015, 70666), (2314, 61535), (2759, 51610), (3970, 35867), (4030, 35333), (5161, 27590), (5518, 25805), (5785, 24614), (10322, 13795), (11570, 12307)]