18619220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 22507180

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 509, 590, 620, 1018, 1180, 1829, 2036, 2545, 3658, 5090, 7316, 9145, 10180, 15779, 18290, 30031, 31558, 36580, 60062, 63116, 78895, 120124, 150155, 157790, 300310, 315580, 600620, 930961, 1861922, 3723844, 4654805, 9309610, 18619220]

約数ペア:

[(1, 18619220), (2, 9309610), (4, 4654805), (5, 3723844), (10, 1861922), (20, 930961), (31, 600620), (59, 315580), (62, 300310), (118, 157790), (124, 150155), (155, 120124), (236, 78895), (295, 63116), (310, 60062), (509, 36580), (590, 31558), (620, 30031), (1018, 18290), (1180, 15779), (1829, 10180), (2036, 9145), (2545, 7316), (3658, 5090)]