81814380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1669}}^1$

素因数の和:1743

約数の個数: 96

約数和(自身を含む): 246892800

約数和(自身を除く): 165078420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 645, 817, 860, 1140, 1290, 1634, 1669, 2451, 2580, 3268, 3338, 4085, 4902, 5007, 6676, 8170, 8345, 9804, 10014, 12255, 16340, 16690, 20028, 24510, 25035, 31711, 33380, 49020, 50070, 63422, 71767, 95133, 100140, 126844, 143534, 158555, 190266, 215301, 287068, 317110, 358835, 380532, 430602, 475665, 634220, 717670, 861204, 951330, 1076505, 1363573, 1435340, 1902660, 2153010, 2727146, 4090719, 4306020, 5454292, 6817865, 8181438, 13635730, 16362876, 20453595, 27271460, 40907190, 81814380]

約数ペア:

[(1, 81814380), (2, 40907190), (3, 27271460), (4, 20453595), (5, 16362876), (6, 13635730), (10, 8181438), (12, 6817865), (15, 5454292), (19, 4306020), (20, 4090719), (30, 2727146), (38, 2153010), (43, 1902660), (57, 1435340), (60, 1363573), (76, 1076505), (86, 951330), (95, 861204), (114, 717670), (129, 634220), (172, 475665), (190, 430602), (215, 380532), (228, 358835), (258, 317110), (285, 287068), (380, 215301), (430, 190266), (516, 158555), (570, 143534), (645, 126844), (817, 100140), (860, 95133), (1140, 71767), (1290, 63422), (1634, 50070), (1669, 49020), (2451, 33380), (2580, 31711), (3268, 25035), (3338, 24510), (4085, 20028), (4902, 16690), (5007, 16340), (6676, 12255), (8170, 10014), (8345, 9804)]