31159980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{599}}^1$

素因数の和:648

約数の個数: 108

約数和(自身を含む): 100573200

約数和(自身を除く): 69413220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 289, 306, 340, 510, 578, 599, 612, 765, 867, 1020, 1156, 1198, 1445, 1530, 1734, 1797, 2396, 2601, 2890, 2995, 3060, 3468, 3594, 4335, 5202, 5391, 5780, 5990, 7188, 8670, 8985, 10183, 10404, 10782, 11980, 13005, 17340, 17970, 20366, 21564, 26010, 26955, 30549, 35940, 40732, 50915, 52020, 53910, 61098, 91647, 101830, 107820, 122196, 152745, 173111, 183294, 203660, 305490, 346222, 366588, 458235, 519333, 610980, 692444, 865555, 916470, 1038666, 1557999, 1731110, 1832940, 2077332, 2596665, 3115998, 3462220, 5193330, 6231996, 7789995, 10386660, 15579990, 31159980]

約数ペア:

[(1, 31159980), (2, 15579990), (3, 10386660), (4, 7789995), (5, 6231996), (6, 5193330), (9, 3462220), (10, 3115998), (12, 2596665), (15, 2077332), (17, 1832940), (18, 1731110), (20, 1557999), (30, 1038666), (34, 916470), (36, 865555), (45, 692444), (51, 610980), (60, 519333), (68, 458235), (85, 366588), (90, 346222), (102, 305490), (153, 203660), (170, 183294), (180, 173111), (204, 152745), (255, 122196), (289, 107820), (306, 101830), (340, 91647), (510, 61098), (578, 53910), (599, 52020), (612, 50915), (765, 40732), (867, 35940), (1020, 30549), (1156, 26955), (1198, 26010), (1445, 21564), (1530, 20366), (1734, 17970), (1797, 17340), (2396, 13005), (2601, 11980), (2890, 10782), (2995, 10404), (3060, 10183), (3468, 8985), (3594, 8670), (4335, 7188), (5202, 5990), (5391, 5780)]