20276760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 70502400

約数和(自身を除く): 50225640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 101, 105, 120, 140, 168, 202, 210, 239, 280, 303, 404, 420, 478, 505, 606, 707, 717, 808, 840, 956, 1010, 1195, 1212, 1414, 1434, 1515, 1673, 1912, 2020, 2121, 2390, 2424, 2828, 2868, 3030, 3346, 3535, 3585, 4040, 4242, 4780, 5019, 5656, 5736, 6060, 6692, 7070, 7170, 8365, 8484, 9560, 10038, 10605, 12120, 13384, 14140, 14340, 16730, 16968, 20076, 21210, 24139, 25095, 28280, 28680, 33460, 40152, 42420, 48278, 50190, 66920, 72417, 84840, 96556, 100380, 120695, 144834, 168973, 193112, 200760, 241390, 289668, 337946, 362085, 482780, 506919, 579336, 675892, 724170, 844865, 965560, 1013838, 1351784, 1448340, 1689730, 2027676, 2534595, 2896680, 3379460, 4055352, 5069190, 6758920, 10138380, 20276760]

約数ペア:

[(1, 20276760), (2, 10138380), (3, 6758920), (4, 5069190), (5, 4055352), (6, 3379460), (7, 2896680), (8, 2534595), (10, 2027676), (12, 1689730), (14, 1448340), (15, 1351784), (20, 1013838), (21, 965560), (24, 844865), (28, 724170), (30, 675892), (35, 579336), (40, 506919), (42, 482780), (56, 362085), (60, 337946), (70, 289668), (84, 241390), (101, 200760), (105, 193112), (120, 168973), (140, 144834), (168, 120695), (202, 100380), (210, 96556), (239, 84840), (280, 72417), (303, 66920), (404, 50190), (420, 48278), (478, 42420), (505, 40152), (606, 33460), (707, 28680), (717, 28280), (808, 25095), (840, 24139), (956, 21210), (1010, 20076), (1195, 16968), (1212, 16730), (1414, 14340), (1434, 14140), (1515, 13384), (1673, 12120), (1912, 10605), (2020, 10038), (2121, 9560), (2390, 8484), (2424, 8365), (2828, 7170), (2868, 7070), (3030, 6692), (3346, 6060), (3535, 5736), (3585, 5656), (4040, 5019), (4242, 4780)]