81591690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1487}}^1$

素因数の和:1587

約数の個数: 64

約数和(自身を含む): 205701120

約数和(自身を除く): 124109430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 59, 62, 93, 118, 155, 177, 186, 295, 310, 354, 465, 590, 885, 930, 1487, 1770, 1829, 2974, 3658, 4461, 5487, 7435, 8922, 9145, 10974, 14870, 18290, 22305, 27435, 44610, 46097, 54870, 87733, 92194, 138291, 175466, 230485, 263199, 276582, 438665, 460970, 526398, 691455, 877330, 1315995, 1382910, 2631990, 2719723, 5439446, 8159169, 13598615, 16318338, 27197230, 40795845, 81591690]

約数ペア:

[(1, 81591690), (2, 40795845), (3, 27197230), (5, 16318338), (6, 13598615), (10, 8159169), (15, 5439446), (30, 2719723), (31, 2631990), (59, 1382910), (62, 1315995), (93, 877330), (118, 691455), (155, 526398), (177, 460970), (186, 438665), (295, 276582), (310, 263199), (354, 230485), (465, 175466), (590, 138291), (885, 92194), (930, 87733), (1487, 54870), (1770, 46097), (1829, 44610), (2974, 27435), (3658, 22305), (4461, 18290), (5487, 14870), (7435, 10974), (8922, 9145)]