31516980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 103892544

約数和(自身を除く): 72375564

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 53, 55, 60, 66, 68, 85, 102, 106, 110, 132, 159, 165, 170, 187, 204, 212, 220, 255, 265, 318, 330, 340, 374, 510, 530, 561, 583, 636, 660, 748, 795, 901, 935, 1020, 1060, 1122, 1166, 1590, 1749, 1802, 1870, 2244, 2332, 2703, 2805, 2809, 2915, 3180, 3498, 3604, 3740, 4505, 5406, 5610, 5618, 5830, 6996, 8427, 8745, 9010, 9911, 10812, 11220, 11236, 11660, 13515, 14045, 16854, 17490, 18020, 19822, 27030, 28090, 29733, 30899, 33708, 34980, 39644, 42135, 47753, 49555, 54060, 56180, 59466, 61798, 84270, 92697, 95506, 99110, 118932, 123596, 143259, 148665, 154495, 168540, 185394, 191012, 198220, 238765, 286518, 297330, 308990, 370788, 463485, 477530, 525283, 573036, 594660, 617980, 716295, 926970, 955060, 1050566, 1432590, 1575849, 1853940, 2101132, 2626415, 2865180, 3151698, 5252830, 6303396, 7879245, 10505660, 15758490, 31516980]

約数ペア:

[(1, 31516980), (2, 15758490), (3, 10505660), (4, 7879245), (5, 6303396), (6, 5252830), (10, 3151698), (11, 2865180), (12, 2626415), (15, 2101132), (17, 1853940), (20, 1575849), (22, 1432590), (30, 1050566), (33, 955060), (34, 926970), (44, 716295), (51, 617980), (53, 594660), (55, 573036), (60, 525283), (66, 477530), (68, 463485), (85, 370788), (102, 308990), (106, 297330), (110, 286518), (132, 238765), (159, 198220), (165, 191012), (170, 185394), (187, 168540), (204, 154495), (212, 148665), (220, 143259), (255, 123596), (265, 118932), (318, 99110), (330, 95506), (340, 92697), (374, 84270), (510, 61798), (530, 59466), (561, 56180), (583, 54060), (636, 49555), (660, 47753), (748, 42135), (795, 39644), (901, 34980), (935, 33708), (1020, 30899), (1060, 29733), (1122, 28090), (1166, 27030), (1590, 19822), (1749, 18020), (1802, 17490), (1870, 16854), (2244, 14045), (2332, 13515), (2703, 11660), (2805, 11236), (2809, 11220), (2915, 10812), (3180, 9911), (3498, 9010), (3604, 8745), (3740, 8427), (4505, 6996), (5406, 5830), (5610, 5618)]