20899696095

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{883}}^1$

素因数の和:1010

約数の個数: 144

約数和(自身を含む): 40351813632

約数和(自身を除く): 19452117537

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 47, 57, 93, 95, 141, 155, 171, 235, 279, 285, 361, 423, 465, 589, 705, 855, 883, 893, 1083, 1395, 1457, 1767, 1805, 2115, 2649, 2679, 2945, 3249, 4371, 4415, 4465, 5301, 5415, 7285, 7947, 8037, 8835, 11191, 13113, 13245, 13395, 16245, 16777, 16967, 21855, 26505, 27373, 27683, 33573, 39735, 40185, 41501, 50331, 50901, 55955, 65565, 82119, 83049, 83885, 84835, 100719, 124503, 136865, 138415, 150993, 152703, 167865, 207505, 246357, 249147, 251655, 254505, 318763, 373509, 410595, 415245, 503595, 520087, 525977, 622515, 754965, 763515, 788519, 956289, 1231785, 1245735, 1286531, 1560261, 1577931, 1593815, 1867545, 2365557, 2600435, 2629885, 2868867, 3859593, 3942595, 4680783, 4733793, 4781445, 6432655, 7096671, 7801305, 7889655, 9881653, 11578779, 11827785, 14344335, 14981861, 19297965, 23403915, 23668965, 24444089, 29644959, 35483355, 44945583, 49408265, 57893895, 73332267, 74909305, 88934877, 122220445, 134836749, 148224795, 219996801, 224727915, 366661335, 444674385, 464437691, 674183745, 1099984005, 1393313073, 2322188455, 4179939219, 6966565365, 20899696095]

約数ペア:

[(1, 20899696095), (3, 6966565365), (5, 4179939219), (9, 2322188455), (15, 1393313073), (19, 1099984005), (31, 674183745), (45, 464437691), (47, 444674385), (57, 366661335), (93, 224727915), (95, 219996801), (141, 148224795), (155, 134836749), (171, 122220445), (235, 88934877), (279, 74909305), (285, 73332267), (361, 57893895), (423, 49408265), (465, 44945583), (589, 35483355), (705, 29644959), (855, 24444089), (883, 23668965), (893, 23403915), (1083, 19297965), (1395, 14981861), (1457, 14344335), (1767, 11827785), (1805, 11578779), (2115, 9881653), (2649, 7889655), (2679, 7801305), (2945, 7096671), (3249, 6432655), (4371, 4781445), (4415, 4733793), (4465, 4680783), (5301, 3942595), (5415, 3859593), (7285, 2868867), (7947, 2629885), (8037, 2600435), (8835, 2365557), (11191, 1867545), (13113, 1593815), (13245, 1577931), (13395, 1560261), (16245, 1286531), (16777, 1245735), (16967, 1231785), (21855, 956289), (26505, 788519), (27373, 763515), (27683, 754965), (33573, 622515), (39735, 525977), (40185, 520087), (41501, 503595), (50331, 415245), (50901, 410595), (55955, 373509), (65565, 318763), (82119, 254505), (83049, 251655), (83885, 249147), (84835, 246357), (100719, 207505), (124503, 167865), (136865, 152703), (138415, 150993)]