81038960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{797}}^1$

素因数の和:882

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 118448272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 797, 820, 1240, 1271, 1594, 1640, 2480, 2542, 3188, 3280, 3985, 5084, 6355, 6376, 7970, 10168, 12710, 12752, 15940, 20336, 24707, 25420, 31880, 32677, 49414, 50840, 63760, 65354, 98828, 101680, 123535, 130708, 163385, 197656, 247070, 261416, 326770, 395312, 494140, 522832, 653540, 988280, 1012987, 1307080, 1976560, 2025974, 2614160, 4051948, 5064935, 8103896, 10129870, 16207792, 20259740, 40519480, 81038960]

約数ペア:

[(1, 81038960), (2, 40519480), (4, 20259740), (5, 16207792), (8, 10129870), (10, 8103896), (16, 5064935), (20, 4051948), (31, 2614160), (40, 2025974), (41, 1976560), (62, 1307080), (80, 1012987), (82, 988280), (124, 653540), (155, 522832), (164, 494140), (205, 395312), (248, 326770), (310, 261416), (328, 247070), (410, 197656), (496, 163385), (620, 130708), (656, 123535), (797, 101680), (820, 98828), (1240, 65354), (1271, 63760), (1594, 50840), (1640, 49414), (2480, 32677), (2542, 31880), (3188, 25420), (3280, 24707), (3985, 20336), (5084, 15940), (6355, 12752), (6376, 12710), (7970, 10168)]