20778780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1657}}^1$

素因数の和:1699

約数の個数: 96

約数和(自身を含む): 66850560

約数和(自身を除く): 46071780

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 132, 165, 190, 209, 220, 228, 285, 330, 380, 418, 570, 627, 660, 836, 1045, 1140, 1254, 1657, 2090, 2508, 3135, 3314, 4180, 4971, 6270, 6628, 8285, 9942, 12540, 16570, 18227, 19884, 24855, 31483, 33140, 36454, 49710, 54681, 62966, 72908, 91135, 94449, 99420, 109362, 125932, 157415, 182270, 188898, 218724, 273405, 314830, 346313, 364540, 377796, 472245, 546810, 629660, 692626, 944490, 1038939, 1093620, 1385252, 1731565, 1888980, 2077878, 3463130, 4155756, 5194695, 6926260, 10389390, 20778780]

約数ペア:

[(1, 20778780), (2, 10389390), (3, 6926260), (4, 5194695), (5, 4155756), (6, 3463130), (10, 2077878), (11, 1888980), (12, 1731565), (15, 1385252), (19, 1093620), (20, 1038939), (22, 944490), (30, 692626), (33, 629660), (38, 546810), (44, 472245), (55, 377796), (57, 364540), (60, 346313), (66, 314830), (76, 273405), (95, 218724), (110, 188898), (114, 182270), (132, 157415), (165, 125932), (190, 109362), (209, 99420), (220, 94449), (228, 91135), (285, 72908), (330, 62966), (380, 54681), (418, 49710), (570, 36454), (627, 33140), (660, 31483), (836, 24855), (1045, 19884), (1140, 18227), (1254, 16570), (1657, 12540), (2090, 9942), (2508, 8285), (3135, 6628), (3314, 6270), (4180, 4971)]