64702980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18919}}^1$

素因数の和:18953

約数の個数: 72

約数和(自身を含む): 206606400

約数和(自身を除く): 141903420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 18919, 37838, 56757, 75676, 94595, 113514, 170271, 189190, 227028, 283785, 340542, 359461, 378380, 567570, 681084, 718922, 851355, 1078383, 1135140, 1437844, 1702710, 1797305, 2156766, 3235149, 3405420, 3594610, 4313532, 5391915, 6470298, 7189220, 10783830, 12940596, 16175745, 21567660, 32351490, 64702980]

約数ペア:

[(1, 64702980), (2, 32351490), (3, 21567660), (4, 16175745), (5, 12940596), (6, 10783830), (9, 7189220), (10, 6470298), (12, 5391915), (15, 4313532), (18, 3594610), (19, 3405420), (20, 3235149), (30, 2156766), (36, 1797305), (38, 1702710), (45, 1437844), (57, 1135140), (60, 1078383), (76, 851355), (90, 718922), (95, 681084), (114, 567570), (171, 378380), (180, 359461), (190, 340542), (228, 283785), (285, 227028), (342, 189190), (380, 170271), (570, 113514), (684, 94595), (855, 75676), (1140, 56757), (1710, 37838), (3420, 18919)]