87680920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 205999200

約数和(自身を除く): 118318280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 131, 145, 232, 262, 290, 524, 577, 580, 655, 1048, 1154, 1160, 1310, 2308, 2620, 2885, 3799, 4616, 5240, 5770, 7598, 11540, 15196, 16733, 18995, 23080, 30392, 33466, 37990, 66932, 75587, 75980, 83665, 133864, 151174, 151960, 167330, 302348, 334660, 377935, 604696, 669320, 755870, 1511740, 2192023, 3023480, 4384046, 8768092, 10960115, 17536184, 21920230, 43840460, 87680920]

約数ペア:

[(1, 87680920), (2, 43840460), (4, 21920230), (5, 17536184), (8, 10960115), (10, 8768092), (20, 4384046), (29, 3023480), (40, 2192023), (58, 1511740), (116, 755870), (131, 669320), (145, 604696), (232, 377935), (262, 334660), (290, 302348), (524, 167330), (577, 151960), (580, 151174), (655, 133864), (1048, 83665), (1154, 75980), (1160, 75587), (1310, 66932), (2308, 37990), (2620, 33466), (2885, 30392), (3799, 23080), (4616, 18995), (5240, 16733), (5770, 15196), (7598, 11540)]