31970540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 87907680

約数和(自身を除く): 55937140

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 49, 68, 70, 76, 85, 95, 98, 101, 119, 133, 140, 170, 190, 196, 202, 238, 245, 266, 323, 340, 380, 404, 476, 490, 505, 532, 595, 646, 665, 707, 833, 931, 980, 1010, 1190, 1292, 1330, 1414, 1615, 1666, 1717, 1862, 1919, 2020, 2261, 2380, 2660, 2828, 3230, 3332, 3434, 3535, 3724, 3838, 4165, 4522, 4655, 4949, 6460, 6868, 7070, 7676, 8330, 8585, 9044, 9310, 9595, 9898, 11305, 12019, 13433, 14140, 15827, 16660, 17170, 18620, 19190, 19796, 22610, 24038, 24745, 26866, 31654, 32623, 34340, 38380, 45220, 48076, 49490, 53732, 60095, 63308, 65246, 67165, 79135, 84133, 94031, 98980, 120190, 130492, 134330, 158270, 163115, 168266, 188062, 228361, 240380, 268660, 316540, 326230, 336532, 376124, 420665, 456722, 470155, 652460, 841330, 913444, 940310, 1141805, 1598527, 1682660, 1880620, 2283610, 3197054, 4567220, 6394108, 7992635, 15985270, 31970540]

約数ペア:

[(1, 31970540), (2, 15985270), (4, 7992635), (5, 6394108), (7, 4567220), (10, 3197054), (14, 2283610), (17, 1880620), (19, 1682660), (20, 1598527), (28, 1141805), (34, 940310), (35, 913444), (38, 841330), (49, 652460), (68, 470155), (70, 456722), (76, 420665), (85, 376124), (95, 336532), (98, 326230), (101, 316540), (119, 268660), (133, 240380), (140, 228361), (170, 188062), (190, 168266), (196, 163115), (202, 158270), (238, 134330), (245, 130492), (266, 120190), (323, 98980), (340, 94031), (380, 84133), (404, 79135), (476, 67165), (490, 65246), (505, 63308), (532, 60095), (595, 53732), (646, 49490), (665, 48076), (707, 45220), (833, 38380), (931, 34340), (980, 32623), (1010, 31654), (1190, 26866), (1292, 24745), (1330, 24038), (1414, 22610), (1615, 19796), (1666, 19190), (1717, 18620), (1862, 17170), (1919, 16660), (2020, 15827), (2261, 14140), (2380, 13433), (2660, 12019), (2828, 11305), (3230, 9898), (3332, 9595), (3434, 9310), (3535, 9044), (3724, 8585), (3838, 8330), (4165, 7676), (4522, 7070), (4655, 6868), (4949, 6460)]