721865976

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{29287}}^1$

素因数の和:29388

約数の個数: 64

約数和(自身を含む): 1968153600

約数和(自身を除く): 1246287624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 79, 104, 156, 158, 237, 312, 316, 474, 632, 948, 1027, 1896, 2054, 3081, 4108, 6162, 8216, 12324, 24648, 29287, 58574, 87861, 117148, 175722, 234296, 351444, 380731, 702888, 761462, 1142193, 1522924, 2284386, 2313673, 3045848, 4568772, 4627346, 6941019, 9137544, 9254692, 13882038, 18509384, 27764076, 30077749, 55528152, 60155498, 90233247, 120310996, 180466494, 240621992, 360932988, 721865976]

約数ペア:

[(1, 721865976), (2, 360932988), (3, 240621992), (4, 180466494), (6, 120310996), (8, 90233247), (12, 60155498), (13, 55528152), (24, 30077749), (26, 27764076), (39, 18509384), (52, 13882038), (78, 9254692), (79, 9137544), (104, 6941019), (156, 4627346), (158, 4568772), (237, 3045848), (312, 2313673), (316, 2284386), (474, 1522924), (632, 1142193), (948, 761462), (1027, 702888), (1896, 380731), (2054, 351444), (3081, 234296), (4108, 175722), (6162, 117148), (8216, 87861), (12324, 58574), (24648, 29287)]