215488980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{171023}}^1$

素因数の和:171045

約数の個数: 72

約数和(自身を含む): 747032832

約数和(自身を除く): 531543852

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 171023, 342046, 513069, 684092, 855115, 1026138, 1197161, 1539207, 1710230, 2052276, 2394322, 2565345, 3078414, 3420460, 3591483, 4788644, 5130690, 5985805, 6156828, 7182966, 7696035, 10261380, 10774449, 11971610, 14365932, 15392070, 17957415, 21548898, 23943220, 30784140, 35914830, 43097796, 53872245, 71829660, 107744490, 215488980]

約数ペア:

[(1, 215488980), (2, 107744490), (3, 71829660), (4, 53872245), (5, 43097796), (6, 35914830), (7, 30784140), (9, 23943220), (10, 21548898), (12, 17957415), (14, 15392070), (15, 14365932), (18, 11971610), (20, 10774449), (21, 10261380), (28, 7696035), (30, 7182966), (35, 6156828), (36, 5985805), (42, 5130690), (45, 4788644), (60, 3591483), (63, 3420460), (70, 3078414), (84, 2565345), (90, 2394322), (105, 2052276), (126, 1710230), (140, 1539207), (180, 1197161), (210, 1026138), (252, 855115), (315, 684092), (420, 513069), (630, 342046), (1260, 171023)]