20521213344

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{5333}}^1$

素因数の和:5811

約数の個数: 144

約数和(自身を含む): 60390779904

約数和(自身を除く): 39869566560

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 431, 496, 558, 744, 862, 992, 1116, 1293, 1488, 1724, 2232, 2586, 2976, 3448, 3879, 4464, 5172, 5333, 6896, 7758, 8928, 10344, 10666, 13361, 13792, 15516, 15999, 20688, 21332, 26722, 31032, 31998, 40083, 41376, 42664, 47997, 53444, 62064, 63996, 80166, 85328, 95994, 106888, 120249, 124128, 127992, 160332, 165323, 170656, 191988, 213776, 240498, 255984, 320664, 330646, 383976, 427552, 480996, 495969, 511968, 641328, 661292, 767952, 961992, 991938, 1282656, 1322584, 1487907, 1535904, 1923984, 1983876, 2298523, 2645168, 2975814, 3847968, 3967752, 4597046, 5290336, 5951628, 6895569, 7935504, 9194092, 11903256, 13791138, 15871008, 18388184, 20686707, 23806512, 27582276, 36776368, 41373414, 47613024, 55164552, 71254213, 73552736, 82746828, 110329104, 142508426, 165493656, 213762639, 220658208, 285016852, 330987312, 427525278, 570033704, 641287917, 661974624, 855050556, 1140067408, 1282575834, 1710101112, 2280134816, 2565151668, 3420202224, 5130303336, 6840404448, 10260606672, 20521213344]

約数ペア:

[(1, 20521213344), (2, 10260606672), (3, 6840404448), (4, 5130303336), (6, 3420202224), (8, 2565151668), (9, 2280134816), (12, 1710101112), (16, 1282575834), (18, 1140067408), (24, 855050556), (31, 661974624), (32, 641287917), (36, 570033704), (48, 427525278), (62, 330987312), (72, 285016852), (93, 220658208), (96, 213762639), (124, 165493656), (144, 142508426), (186, 110329104), (248, 82746828), (279, 73552736), (288, 71254213), (372, 55164552), (431, 47613024), (496, 41373414), (558, 36776368), (744, 27582276), (862, 23806512), (992, 20686707), (1116, 18388184), (1293, 15871008), (1488, 13791138), (1724, 11903256), (2232, 9194092), (2586, 7935504), (2976, 6895569), (3448, 5951628), (3879, 5290336), (4464, 4597046), (5172, 3967752), (5333, 3847968), (6896, 2975814), (7758, 2645168), (8928, 2298523), (10344, 1983876), (10666, 1923984), (13361, 1535904), (13792, 1487907), (15516, 1322584), (15999, 1282656), (20688, 991938), (21332, 961992), (26722, 767952), (31032, 661292), (31998, 641328), (40083, 511968), (41376, 495969), (42664, 480996), (47997, 427552), (53444, 383976), (62064, 330646), (63996, 320664), (80166, 255984), (85328, 240498), (95994, 213776), (106888, 191988), (120249, 170656), (124128, 165323), (127992, 160332)]