201121840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:770

約数の個数: 80

約数和(自身を含む): 494968320

約数和(自身を除く): 293846480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 307, 380, 431, 614, 760, 862, 1228, 1520, 1535, 1724, 2155, 2456, 3070, 3448, 4310, 4912, 5833, 6140, 6896, 8189, 8620, 11666, 12280, 16378, 17240, 23332, 24560, 29165, 32756, 34480, 40945, 46664, 58330, 65512, 81890, 93328, 116660, 131024, 132317, 163780, 233320, 264634, 327560, 466640, 529268, 655120, 661585, 1058536, 1323170, 2117072, 2514023, 2646340, 5028046, 5292680, 10056092, 10585360, 12570115, 20112184, 25140230, 40224368, 50280460, 100560920, 201121840]

約数ペア:

[(1, 201121840), (2, 100560920), (4, 50280460), (5, 40224368), (8, 25140230), (10, 20112184), (16, 12570115), (19, 10585360), (20, 10056092), (38, 5292680), (40, 5028046), (76, 2646340), (80, 2514023), (95, 2117072), (152, 1323170), (190, 1058536), (304, 661585), (307, 655120), (380, 529268), (431, 466640), (614, 327560), (760, 264634), (862, 233320), (1228, 163780), (1520, 132317), (1535, 131024), (1724, 116660), (2155, 93328), (2456, 81890), (3070, 65512), (3448, 58330), (4310, 46664), (4912, 40945), (5833, 34480), (6140, 32756), (6896, 29165), (8189, 24560), (8620, 23332), (11666, 17240), (12280, 16378)]