30661480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 72345600

約数和(自身を除く): 41684120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 313, 316, 395, 620, 626, 632, 790, 1240, 1252, 1565, 1580, 2449, 2504, 3130, 3160, 4898, 6260, 9703, 9796, 12245, 12520, 19406, 19592, 24490, 24727, 38812, 48515, 48980, 49454, 77624, 97030, 97960, 98908, 123635, 194060, 197816, 247270, 388120, 494540, 766537, 989080, 1533074, 3066148, 3832685, 6132296, 7665370, 15330740, 30661480]

約数ペア:

[(1, 30661480), (2, 15330740), (4, 7665370), (5, 6132296), (8, 3832685), (10, 3066148), (20, 1533074), (31, 989080), (40, 766537), (62, 494540), (79, 388120), (124, 247270), (155, 197816), (158, 194060), (248, 123635), (310, 98908), (313, 97960), (316, 97030), (395, 77624), (620, 49454), (626, 48980), (632, 48515), (790, 38812), (1240, 24727), (1252, 24490), (1565, 19592), (1580, 19406), (2449, 12520), (2504, 12245), (3130, 9796), (3160, 9703), (4898, 6260)]