20517714684

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1\times {\mathrm{983}}^1$

素因数の和:1400

約数の個数: 144

約数和(自身を含む): 54671984640

約数和(自身を除く): 34154269956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 59, 62, 93, 118, 124, 177, 186, 236, 279, 317, 354, 372, 531, 558, 634, 708, 951, 983, 1062, 1116, 1268, 1829, 1902, 1966, 2124, 2853, 2949, 3658, 3804, 3932, 5487, 5706, 5898, 7316, 8847, 9827, 10974, 11412, 11796, 16461, 17694, 18703, 19654, 21948, 29481, 30473, 32922, 35388, 37406, 39308, 56109, 57997, 58962, 60946, 65844, 74812, 88443, 91419, 112218, 115994, 117924, 121892, 168327, 173991, 176886, 182838, 224436, 231988, 274257, 311611, 336654, 347982, 353772, 365676, 521973, 548514, 579793, 623222, 673308, 695964, 934833, 1043946, 1097028, 1159586, 1246444, 1739379, 1797907, 1869666, 2087892, 2319172, 2804499, 3478758, 3595814, 3739332, 5218137, 5393721, 5608998, 6957516, 7191628, 9659941, 10436274, 10787442, 11217996, 16181163, 18385049, 19319882, 20872548, 21574884, 28979823, 32362326, 36770098, 38639764, 55155147, 57959646, 64724652, 73540196, 86939469, 110310294, 115919292, 165465441, 173878938, 220620588, 330930882, 347757876, 569936519, 661861764, 1139873038, 1709809557, 2279746076, 3419619114, 5129428671, 6839238228, 10258857342, 20517714684]

約数ペア:

[(1, 20517714684), (2, 10258857342), (3, 6839238228), (4, 5129428671), (6, 3419619114), (9, 2279746076), (12, 1709809557), (18, 1139873038), (31, 661861764), (36, 569936519), (59, 347757876), (62, 330930882), (93, 220620588), (118, 173878938), (124, 165465441), (177, 115919292), (186, 110310294), (236, 86939469), (279, 73540196), (317, 64724652), (354, 57959646), (372, 55155147), (531, 38639764), (558, 36770098), (634, 32362326), (708, 28979823), (951, 21574884), (983, 20872548), (1062, 19319882), (1116, 18385049), (1268, 16181163), (1829, 11217996), (1902, 10787442), (1966, 10436274), (2124, 9659941), (2853, 7191628), (2949, 6957516), (3658, 5608998), (3804, 5393721), (3932, 5218137), (5487, 3739332), (5706, 3595814), (5898, 3478758), (7316, 2804499), (8847, 2319172), (9827, 2087892), (10974, 1869666), (11412, 1797907), (11796, 1739379), (16461, 1246444), (17694, 1159586), (18703, 1097028), (19654, 1043946), (21948, 934833), (29481, 695964), (30473, 673308), (32922, 623222), (35388, 579793), (37406, 548514), (39308, 521973), (56109, 365676), (57997, 353772), (58962, 347982), (60946, 336654), (65844, 311611), (74812, 274257), (88443, 231988), (91419, 224436), (112218, 182838), (115994, 176886), (117924, 173991), (121892, 168327)]