217260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:103

約数の個数: 72

約数和(自身を含む): 707616

約数和(自身を除く): 490356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 71, 85, 90, 102, 142, 153, 170, 180, 204, 213, 255, 284, 306, 340, 355, 426, 510, 612, 639, 710, 765, 852, 1020, 1065, 1207, 1278, 1420, 1530, 2130, 2414, 2556, 3060, 3195, 3621, 4260, 4828, 6035, 6390, 7242, 10863, 12070, 12780, 14484, 18105, 21726, 24140, 36210, 43452, 54315, 72420, 108630, 217260]

約数ペア:

[(1, 217260), (2, 108630), (3, 72420), (4, 54315), (5, 43452), (6, 36210), (9, 24140), (10, 21726), (12, 18105), (15, 14484), (17, 12780), (18, 12070), (20, 10863), (30, 7242), (34, 6390), (36, 6035), (45, 4828), (51, 4260), (60, 3621), (68, 3195), (71, 3060), (85, 2556), (90, 2414), (102, 2130), (142, 1530), (153, 1420), (170, 1278), (180, 1207), (204, 1065), (213, 1020), (255, 852), (284, 765), (306, 710), (340, 639), (355, 612), (426, 510)]