81107040

素因数分解:

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

素因数の和:365

約数の個数: 192

約数和(自身を含む): 296110080

約数和(自身を除く): 215003040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 101, 105, 112, 120, 140, 160, 168, 202, 210, 224, 239, 240, 280, 303, 336, 404, 420, 478, 480, 505, 560, 606, 672, 707, 717, 808, 840, 956, 1010, 1120, 1195, 1212, 1414, 1434, 1515, 1616, 1673, 1680, 1912, 2020, 2121, 2390, 2424, 2828, 2868, 3030, 3232, 3346, 3360, 3535, 3585, 3824, 4040, 4242, 4780, 4848, 5019, 5656, 5736, 6060, 6692, 7070, 7170, 7648, 8080, 8365, 8484, 9560, 9696, 10038, 10605, 11312, 11472, 12120, 13384, 14140, 14340, 16160, 16730, 16968, 19120, 20076, 21210, 22624, 22944, 24139, 24240, 25095, 26768, 28280, 28680, 33460, 33936, 38240, 40152, 42420, 48278, 48480, 50190, 53536, 56560, 57360, 66920, 67872, 72417, 80304, 84840, 96556, 100380, 113120, 114720, 120695, 133840, 144834, 160608, 168973, 169680, 193112, 200760, 241390, 267680, 289668, 337946, 339360, 362085, 386224, 401520, 482780, 506919, 579336, 675892, 724170, 772448, 803040, 844865, 965560, 1013838, 1158672, 1351784, 1448340, 1689730, 1931120, 2027676, 2317344, 2534595, 2703568, 2896680, 3379460, 3862240, 4055352, 5069190, 5407136, 5793360, 6758920, 8110704, 10138380, 11586720, 13517840, 16221408, 20276760, 27035680, 40553520, 81107040]

約数ペア:

[(1, 81107040), (2, 40553520), (3, 27035680), (4, 20276760), (5, 16221408), (6, 13517840), (7, 11586720), (8, 10138380), (10, 8110704), (12, 6758920), (14, 5793360), (15, 5407136), (16, 5069190), (20, 4055352), (21, 3862240), (24, 3379460), (28, 2896680), (30, 2703568), (32, 2534595), (35, 2317344), (40, 2027676), (42, 1931120), (48, 1689730), (56, 1448340), (60, 1351784), (70, 1158672), (80, 1013838), (84, 965560), (96, 844865), (101, 803040), (105, 772448), (112, 724170), (120, 675892), (140, 579336), (160, 506919), (168, 482780), (202, 401520), (210, 386224), (224, 362085), (239, 339360), (240, 337946), (280, 289668), (303, 267680), (336, 241390), (404, 200760), (420, 193112), (478, 169680), (480, 168973), (505, 160608), (560, 144834), (606, 133840), (672, 120695), (707, 114720), (717, 113120), (808, 100380), (840, 96556), (956, 84840), (1010, 80304), (1120, 72417), (1195, 67872), (1212, 66920), (1414, 57360), (1434, 56560), (1515, 53536), (1616, 50190), (1673, 48480), (1680, 48278), (1912, 42420), (2020, 40152), (2121, 38240), (2390, 33936), (2424, 33460), (2828, 28680), (2868, 28280), (3030, 26768), (3232, 25095), (3346, 24240), (3360, 24139), (3535, 22944), (3585, 22624), (3824, 21210), (4040, 20076), (4242, 19120), (4780, 16968), (4848, 16730), (5019, 16160), (5656, 14340), (5736, 14140), (6060, 13384), (6692, 12120), (7070, 11472), (7170, 11312), (7648, 10605), (8080, 10038), (8365, 9696), (8484, 9560)]