20184845000

素因数分解:

$2^3\times 5^4\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:713

約数の個数: 160

約数和(自身を含む): 48725402880

約数和(自身を除く): 28540557880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 200, 215, 223, 250, 344, 421, 430, 446, 500, 625, 842, 860, 892, 1000, 1075, 1115, 1250, 1684, 1720, 1784, 2105, 2150, 2230, 2500, 3368, 4210, 4300, 4460, 5000, 5375, 5575, 8420, 8600, 8920, 9589, 10525, 10750, 11150, 16840, 18103, 19178, 21050, 21500, 22300, 26875, 27875, 36206, 38356, 42100, 43000, 44600, 47945, 52625, 53750, 55750, 72412, 76712, 84200, 90515, 93883, 95890, 105250, 107500, 111500, 139375, 144824, 181030, 187766, 191780, 210500, 215000, 223000, 239725, 263125, 278750, 362060, 375532, 383560, 421000, 452575, 469415, 479450, 526250, 557500, 724120, 751064, 905150, 938830, 958900, 1052500, 1115000, 1198625, 1810300, 1877660, 1917800, 2105000, 2262875, 2347075, 2397250, 3620600, 3755320, 4036969, 4525750, 4694150, 4794500, 5993125, 8073938, 9051500, 9388300, 9589000, 11314375, 11735375, 11986250, 16147876, 18103000, 18776600, 20184845, 22628750, 23470750, 23972500, 32295752, 40369690, 45257500, 46941500, 47945000, 58676875, 80739380, 90515000, 93883000, 100924225, 117353750, 161478760, 201848450, 234707500, 403696900, 469415000, 504621125, 807393800, 1009242250, 2018484500, 2523105625, 4036969000, 5046211250, 10092422500, 20184845000]

約数ペア:

[(1, 20184845000), (2, 10092422500), (4, 5046211250), (5, 4036969000), (8, 2523105625), (10, 2018484500), (20, 1009242250), (25, 807393800), (40, 504621125), (43, 469415000), (50, 403696900), (86, 234707500), (100, 201848450), (125, 161478760), (172, 117353750), (200, 100924225), (215, 93883000), (223, 90515000), (250, 80739380), (344, 58676875), (421, 47945000), (430, 46941500), (446, 45257500), (500, 40369690), (625, 32295752), (842, 23972500), (860, 23470750), (892, 22628750), (1000, 20184845), (1075, 18776600), (1115, 18103000), (1250, 16147876), (1684, 11986250), (1720, 11735375), (1784, 11314375), (2105, 9589000), (2150, 9388300), (2230, 9051500), (2500, 8073938), (3368, 5993125), (4210, 4794500), (4300, 4694150), (4460, 4525750), (5000, 4036969), (5375, 3755320), (5575, 3620600), (8420, 2397250), (8600, 2347075), (8920, 2262875), (9589, 2105000), (10525, 1917800), (10750, 1877660), (11150, 1810300), (16840, 1198625), (18103, 1115000), (19178, 1052500), (21050, 958900), (21500, 938830), (22300, 905150), (26875, 751064), (27875, 724120), (36206, 557500), (38356, 526250), (42100, 479450), (43000, 469415), (44600, 452575), (47945, 421000), (52625, 383560), (53750, 375532), (55750, 362060), (72412, 278750), (76712, 263125), (84200, 239725), (90515, 223000), (93883, 215000), (95890, 210500), (105250, 191780), (107500, 187766), (111500, 181030), (139375, 144824)]