217278540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1913}}^1$

素因数の和:2559

約数の個数: 72

約数和(自身を含む): 660467808

約数和(自身を除く): 443189268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 631, 1262, 1893, 1913, 2524, 3155, 3786, 3826, 5679, 5739, 6310, 7572, 7652, 9465, 9565, 11358, 11478, 12620, 17217, 18930, 19130, 22716, 22956, 28395, 28695, 34434, 37860, 38260, 56790, 57390, 68868, 86085, 113580, 114780, 172170, 344340, 1207103, 2414206, 3621309, 4828412, 6035515, 7242618, 10863927, 12071030, 14485236, 18106545, 21727854, 24142060, 36213090, 43455708, 54319635, 72426180, 108639270, 217278540]

約数ペア:

[(1, 217278540), (2, 108639270), (3, 72426180), (4, 54319635), (5, 43455708), (6, 36213090), (9, 24142060), (10, 21727854), (12, 18106545), (15, 14485236), (18, 12071030), (20, 10863927), (30, 7242618), (36, 6035515), (45, 4828412), (60, 3621309), (90, 2414206), (180, 1207103), (631, 344340), (1262, 172170), (1893, 114780), (1913, 113580), (2524, 86085), (3155, 68868), (3786, 57390), (3826, 56790), (5679, 38260), (5739, 37860), (6310, 34434), (7572, 28695), (7652, 28395), (9465, 22956), (9565, 22716), (11358, 19130), (11478, 18930), (12620, 17217)]