28422720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 168

約数和(自身を含む): 99852480

約数和(自身を除く): 71429760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 139, 142, 144, 160, 180, 192, 213, 240, 278, 284, 288, 320, 355, 360, 417, 426, 480, 556, 568, 576, 639, 695, 710, 720, 834, 852, 960, 1065, 1112, 1136, 1251, 1278, 1390, 1420, 1440, 1668, 1704, 2085, 2130, 2224, 2272, 2502, 2556, 2780, 2840, 2880, 3195, 3336, 3408, 4170, 4260, 4448, 4544, 5004, 5112, 5560, 5680, 6255, 6390, 6672, 6816, 8340, 8520, 8896, 9869, 10008, 10224, 11120, 11360, 12510, 12780, 13344, 13632, 16680, 17040, 19738, 20016, 20448, 22240, 22720, 25020, 25560, 26688, 29607, 33360, 34080, 39476, 40032, 40896, 44480, 49345, 50040, 51120, 59214, 66720, 68160, 78952, 80064, 88821, 98690, 100080, 102240, 118428, 133440, 148035, 157904, 177642, 197380, 200160, 204480, 236856, 296070, 315808, 355284, 394760, 400320, 444105, 473712, 592140, 631616, 710568, 789520, 888210, 947424, 1184280, 1421136, 1579040, 1776420, 1894848, 2368560, 2842272, 3158080, 3552840, 4737120, 5684544, 7105680, 9474240, 14211360, 28422720]

約数ペア:

[(1, 28422720), (2, 14211360), (3, 9474240), (4, 7105680), (5, 5684544), (6, 4737120), (8, 3552840), (9, 3158080), (10, 2842272), (12, 2368560), (15, 1894848), (16, 1776420), (18, 1579040), (20, 1421136), (24, 1184280), (30, 947424), (32, 888210), (36, 789520), (40, 710568), (45, 631616), (48, 592140), (60, 473712), (64, 444105), (71, 400320), (72, 394760), (80, 355284), (90, 315808), (96, 296070), (120, 236856), (139, 204480), (142, 200160), (144, 197380), (160, 177642), (180, 157904), (192, 148035), (213, 133440), (240, 118428), (278, 102240), (284, 100080), (288, 98690), (320, 88821), (355, 80064), (360, 78952), (417, 68160), (426, 66720), (480, 59214), (556, 51120), (568, 50040), (576, 49345), (639, 44480), (695, 40896), (710, 40032), (720, 39476), (834, 34080), (852, 33360), (960, 29607), (1065, 26688), (1112, 25560), (1136, 25020), (1251, 22720), (1278, 22240), (1390, 20448), (1420, 20016), (1440, 19738), (1668, 17040), (1704, 16680), (2085, 13632), (2130, 13344), (2224, 12780), (2272, 12510), (2502, 11360), (2556, 11120), (2780, 10224), (2840, 10008), (2880, 9869), (3195, 8896), (3336, 8520), (3408, 8340), (4170, 6816), (4260, 6672), (4448, 6390), (4544, 6255), (5004, 5680), (5112, 5560)]