72221520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{42989}}^1$

素因数の和:43012

約数の個数: 80

約数和(自身を含む): 255876480

約数和(自身を除く): 183654960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 42989, 85978, 128967, 171956, 214945, 257934, 300923, 343912, 429890, 515868, 601846, 644835, 687824, 859780, 902769, 1031736, 1203692, 1289670, 1504615, 1719560, 1805538, 2063472, 2407384, 2579340, 3009230, 3439120, 3611076, 4513845, 4814768, 5158680, 6018460, 7222152, 9027690, 10317360, 12036920, 14444304, 18055380, 24073840, 36110760, 72221520]

約数ペア:

[(1, 72221520), (2, 36110760), (3, 24073840), (4, 18055380), (5, 14444304), (6, 12036920), (7, 10317360), (8, 9027690), (10, 7222152), (12, 6018460), (14, 5158680), (15, 4814768), (16, 4513845), (20, 3611076), (21, 3439120), (24, 3009230), (28, 2579340), (30, 2407384), (35, 2063472), (40, 1805538), (42, 1719560), (48, 1504615), (56, 1289670), (60, 1203692), (70, 1031736), (80, 902769), (84, 859780), (105, 687824), (112, 644835), (120, 601846), (140, 515868), (168, 429890), (210, 343912), (240, 300923), (280, 257934), (336, 214945), (420, 171956), (560, 128967), (840, 85978), (1680, 42989)]