81989730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{29387}}^1$

素因数の和:29431

約数の個数: 48

約数和(自身を含む): 220057344

約数和(自身を除く): 138067614

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 29387, 58774, 88161, 146935, 176322, 264483, 293870, 440805, 528966, 881610, 910997, 1322415, 1821994, 2644830, 2732991, 4554985, 5465982, 8198973, 9109970, 13664955, 16397946, 27329910, 40994865, 81989730]

約数ペア:

[(1, 81989730), (2, 40994865), (3, 27329910), (5, 16397946), (6, 13664955), (9, 9109970), (10, 8198973), (15, 5465982), (18, 4554985), (30, 2732991), (31, 2644830), (45, 1821994), (62, 1322415), (90, 910997), (93, 881610), (155, 528966), (186, 440805), (279, 293870), (310, 264483), (465, 176322), (558, 146935), (930, 88161), (1395, 58774), (2790, 29387)]