1520774820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{444671}}^1$

素因数の和:444705

約数の個数: 72

約数和(自身を含む): 4855818240

約数和(自身を除く): 3335043420

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, 444671, 889342, 1334013, 1778684, 2223355, 2668026, 4002039, 4446710, 5336052, 6670065, 8004078, 8448749, 8893420, 13340130, 16008156, 16897498, 20010195, 25346247, 26680260, 33794996, 40020390, 42243745, 50692494, 76038741, 80040780, 84487490, 101384988, 126731235, 152077482, 168974980, 253462470, 304154964, 380193705, 506924940, 760387410, 1520774820]

約数ペア:

[(1, 1520774820), (2, 760387410), (3, 506924940), (4, 380193705), (5, 304154964), (6, 253462470), (9, 168974980), (10, 152077482), (12, 126731235), (15, 101384988), (18, 84487490), (19, 80040780), (20, 76038741), (30, 50692494), (36, 42243745), (38, 40020390), (45, 33794996), (57, 26680260), (60, 25346247), (76, 20010195), (90, 16897498), (95, 16008156), (114, 13340130), (171, 8893420), (180, 8448749), (190, 8004078), (228, 6670065), (285, 5336052), (342, 4446710), (380, 4002039), (570, 2668026), (684, 2223355), (855, 1778684), (1140, 1334013), (1710, 889342), (3420, 444671)]