138728750

素因数分解:

$2^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 80

約数和(自身を含む): 278348400

約数和(自身を除く): 139619650

約数列:

[1, 2, 5, 10, 25, 29, 43, 50, 58, 86, 89, 125, 145, 178, 215, 250, 290, 430, 445, 625, 725, 890, 1075, 1247, 1250, 1450, 2150, 2225, 2494, 2581, 3625, 3827, 4450, 5162, 5375, 6235, 7250, 7654, 10750, 11125, 12470, 12905, 18125, 19135, 22250, 25810, 26875, 31175, 36250, 38270, 53750, 55625, 62350, 64525, 95675, 110983, 111250, 129050, 155875, 191350, 221966, 311750, 322625, 478375, 554915, 645250, 779375, 956750, 1109830, 1558750, 1613125, 2391875, 2774575, 3226250, 4783750, 5549150, 13872875, 27745750, 69364375, 138728750]

約数ペア:

[(1, 138728750), (2, 69364375), (5, 27745750), (10, 13872875), (25, 5549150), (29, 4783750), (43, 3226250), (50, 2774575), (58, 2391875), (86, 1613125), (89, 1558750), (125, 1109830), (145, 956750), (178, 779375), (215, 645250), (250, 554915), (290, 478375), (430, 322625), (445, 311750), (625, 221966), (725, 191350), (890, 155875), (1075, 129050), (1247, 111250), (1250, 110983), (1450, 95675), (2150, 64525), (2225, 62350), (2494, 55625), (2581, 53750), (3625, 38270), (3827, 36250), (4450, 31175), (5162, 26875), (5375, 25810), (6235, 22250), (7250, 19135), (7654, 18125), (10750, 12905), (11125, 12470)]