313516640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2039}}^1$

素因数の和:2116

約数の個数: 72

約数和(自身を含む): 765722160

約数和(自身を除く): 452205520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1922, 2039, 2480, 3844, 4078, 4805, 4960, 7688, 8156, 9610, 10195, 15376, 16312, 19220, 20390, 30752, 32624, 38440, 40780, 63209, 65248, 76880, 81560, 126418, 153760, 163120, 252836, 316045, 326240, 505672, 632090, 1011344, 1264180, 1959479, 2022688, 2528360, 3918958, 5056720, 7837916, 9797395, 10113440, 15675832, 19594790, 31351664, 39189580, 62703328, 78379160, 156758320, 313516640]

約数ペア:

[(1, 313516640), (2, 156758320), (4, 78379160), (5, 62703328), (8, 39189580), (10, 31351664), (16, 19594790), (20, 15675832), (31, 10113440), (32, 9797395), (40, 7837916), (62, 5056720), (80, 3918958), (124, 2528360), (155, 2022688), (160, 1959479), (248, 1264180), (310, 1011344), (496, 632090), (620, 505672), (961, 326240), (992, 316045), (1240, 252836), (1922, 163120), (2039, 153760), (2480, 126418), (3844, 81560), (4078, 76880), (4805, 65248), (4960, 63209), (7688, 40780), (8156, 38440), (9610, 32624), (10195, 30752), (15376, 20390), (16312, 19220)]