31876020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{947}}^1$

素因数の和:990

約数の個数: 144

約数和(自身を含む): 111803328

約数和(自身を除く): 79927308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 612, 660, 748, 765, 935, 947, 990, 1020, 1122, 1530, 1683, 1870, 1894, 1980, 2244, 2805, 2841, 3060, 3366, 3740, 3788, 4735, 5610, 5682, 6732, 8415, 8523, 9470, 10417, 11220, 11364, 14205, 16099, 16830, 17046, 18940, 20834, 28410, 31251, 32198, 33660, 34092, 41668, 42615, 48297, 52085, 56820, 62502, 64396, 80495, 85230, 93753, 96594, 104170, 125004, 144891, 156255, 160990, 170460, 177089, 187506, 193188, 208340, 241485, 289782, 312510, 321980, 354178, 375012, 468765, 482970, 531267, 579564, 625020, 708356, 724455, 885445, 937530, 965940, 1062534, 1448910, 1593801, 1770890, 1875060, 2125068, 2656335, 2897820, 3187602, 3541780, 5312670, 6375204, 7969005, 10625340, 15938010, 31876020]

約数ペア:

[(1, 31876020), (2, 15938010), (3, 10625340), (4, 7969005), (5, 6375204), (6, 5312670), (9, 3541780), (10, 3187602), (11, 2897820), (12, 2656335), (15, 2125068), (17, 1875060), (18, 1770890), (20, 1593801), (22, 1448910), (30, 1062534), (33, 965940), (34, 937530), (36, 885445), (44, 724455), (45, 708356), (51, 625020), (55, 579564), (60, 531267), (66, 482970), (68, 468765), (85, 375012), (90, 354178), (99, 321980), (102, 312510), (110, 289782), (132, 241485), (153, 208340), (165, 193188), (170, 187506), (180, 177089), (187, 170460), (198, 160990), (204, 156255), (220, 144891), (255, 125004), (306, 104170), (330, 96594), (340, 93753), (374, 85230), (396, 80495), (495, 64396), (510, 62502), (561, 56820), (612, 52085), (660, 48297), (748, 42615), (765, 41668), (935, 34092), (947, 33660), (990, 32198), (1020, 31251), (1122, 28410), (1530, 20834), (1683, 18940), (1870, 17046), (1894, 16830), (1980, 16099), (2244, 14205), (2805, 11364), (2841, 11220), (3060, 10417), (3366, 9470), (3740, 8523), (3788, 8415), (4735, 6732), (5610, 5682)]