20854020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1663}}^1$

素因数の和:1705

約数の個数: 96

約数和(自身を含む): 67092480

約数和(自身を除く): 46238460

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, 1663, 2090, 2508, 3135, 3326, 4180, 4989, 6270, 6652, 8315, 9978, 12540, 16630, 18293, 19956, 24945, 31597, 33260, 36586, 49890, 54879, 63194, 73172, 91465, 94791, 99780, 109758, 126388, 157985, 182930, 189582, 219516, 274395, 315970, 347567, 365860, 379164, 473955, 548790, 631940, 695134, 947910, 1042701, 1097580, 1390268, 1737835, 1895820, 2085402, 3475670, 4170804, 5213505, 6951340, 10427010, 20854020]

約数ペア:

[(1, 20854020), (2, 10427010), (3, 6951340), (4, 5213505), (5, 4170804), (6, 3475670), (10, 2085402), (11, 1895820), (12, 1737835), (15, 1390268), (19, 1097580), (20, 1042701), (22, 947910), (30, 695134), (33, 631940), (38, 548790), (44, 473955), (55, 379164), (57, 365860), (60, 347567), (66, 315970), (76, 274395), (95, 219516), (110, 189582), (114, 182930), (132, 157985), (165, 126388), (190, 109758), (209, 99780), (220, 94791), (228, 91465), (285, 73172), (330, 63194), (380, 54879), (418, 49890), (570, 36586), (627, 33260), (660, 31597), (836, 24945), (1045, 19956), (1140, 18293), (1254, 16630), (1663, 12540), (2090, 9978), (2508, 8315), (3135, 6652), (3326, 6270), (4180, 4989)]