140520520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16189}}^1$

素因数の和:16238

約数の個数: 64

約数和(自身を含む): 373017600

約数和(自身を除く): 232497080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 16189, 32378, 64756, 80945, 113323, 129512, 161890, 226646, 323780, 453292, 501859, 566615, 647560, 906584, 1003718, 1133230, 2007436, 2266460, 2509295, 3513013, 4014872, 4532920, 5018590, 7026026, 10037180, 14052052, 17565065, 20074360, 28104104, 35130130, 70260260, 140520520]

約数ペア:

[(1, 140520520), (2, 70260260), (4, 35130130), (5, 28104104), (7, 20074360), (8, 17565065), (10, 14052052), (14, 10037180), (20, 7026026), (28, 5018590), (31, 4532920), (35, 4014872), (40, 3513013), (56, 2509295), (62, 2266460), (70, 2007436), (124, 1133230), (140, 1003718), (155, 906584), (217, 647560), (248, 566615), (280, 501859), (310, 453292), (434, 323780), (620, 226646), (868, 161890), (1085, 129512), (1240, 113323), (1736, 80945), (2170, 64756), (4340, 32378), (8680, 16189)]