640804927005

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1\times {\mathrm{457}}^1\times {\mathrm{541}}^1$

素因数の和:1348

約数の個数: 128

約数和(自身を含む): 1163889239040

約数和(自身を除く): 523084312035

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 263, 365, 457, 541, 657, 789, 1095, 1315, 1371, 1623, 1971, 2285, 2367, 2705, 3285, 3945, 4113, 4869, 6855, 7101, 8115, 9855, 11835, 12339, 14607, 19199, 20565, 24345, 33361, 35505, 39493, 57597, 61695, 73035, 95995, 100083, 118479, 120191, 142283, 166805, 172791, 197465, 247237, 287985, 300249, 355437, 360573, 426849, 500415, 518373, 592395, 600955, 711415, 741711, 863955, 900747, 1066311, 1081719, 1236185, 1280547, 1501245, 1777185, 1802865, 2134245, 2225133, 2591865, 3245157, 3708555, 3841641, 4503735, 5331555, 5408595, 6402735, 6675399, 8773943, 10386659, 11125665, 16225785, 18048301, 19208205, 26321829, 31159977, 33376995, 43869715, 51933295, 54144903, 65023331, 78965487, 90241505, 93479931, 131609145, 155799885, 162434709, 195069993, 236896461, 270724515, 280439793, 325116655, 394827435, 467399655, 487304127, 585209979, 812173545, 975349965, 1184482305, 1402198965, 1755629937, 2436520635, 2926049895, 4746703163, 8778149685, 14240109489, 23733515815, 42720328467, 71200547445, 128160985401, 213601642335, 640804927005]

約数ペア:

[(1, 640804927005), (3, 213601642335), (5, 128160985401), (9, 71200547445), (15, 42720328467), (27, 23733515815), (45, 14240109489), (73, 8778149685), (135, 4746703163), (219, 2926049895), (263, 2436520635), (365, 1755629937), (457, 1402198965), (541, 1184482305), (657, 975349965), (789, 812173545), (1095, 585209979), (1315, 487304127), (1371, 467399655), (1623, 394827435), (1971, 325116655), (2285, 280439793), (2367, 270724515), (2705, 236896461), (3285, 195069993), (3945, 162434709), (4113, 155799885), (4869, 131609145), (6855, 93479931), (7101, 90241505), (8115, 78965487), (9855, 65023331), (11835, 54144903), (12339, 51933295), (14607, 43869715), (19199, 33376995), (20565, 31159977), (24345, 26321829), (33361, 19208205), (35505, 18048301), (39493, 16225785), (57597, 11125665), (61695, 10386659), (73035, 8773943), (95995, 6675399), (100083, 6402735), (118479, 5408595), (120191, 5331555), (142283, 4503735), (166805, 3841641), (172791, 3708555), (197465, 3245157), (247237, 2591865), (287985, 2225133), (300249, 2134245), (355437, 1802865), (360573, 1777185), (426849, 1501245), (500415, 1280547), (518373, 1236185), (592395, 1081719), (600955, 1066311), (711415, 900747), (741711, 863955)]