21372480

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 168

約数和(自身を含む): 75721464

約数和(自身を除く): 54348984

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 181, 192, 205, 240, 246, 288, 320, 328, 360, 362, 369, 410, 480, 492, 543, 576, 615, 656, 720, 724, 738, 820, 905, 960, 984, 1086, 1230, 1312, 1440, 1448, 1476, 1629, 1640, 1810, 1845, 1968, 2172, 2460, 2624, 2715, 2880, 2896, 2952, 3258, 3280, 3620, 3690, 3936, 4344, 4920, 5430, 5792, 5904, 6516, 6560, 7240, 7380, 7421, 7872, 8145, 8688, 9840, 10860, 11584, 11808, 13032, 13120, 14480, 14760, 14842, 16290, 17376, 19680, 21720, 22263, 23616, 26064, 28960, 29520, 29684, 32580, 34752, 37105, 39360, 43440, 44526, 52128, 57920, 59040, 59368, 65160, 66789, 74210, 86880, 89052, 104256, 111315, 118080, 118736, 130320, 133578, 148420, 173760, 178104, 222630, 237472, 260640, 267156, 296840, 333945, 356208, 445260, 474944, 521280, 534312, 593680, 667890, 712416, 890520, 1068624, 1187360, 1335780, 1424832, 1781040, 2137248, 2374720, 2671560, 3562080, 4274496, 5343120, 7124160, 10686240, 21372480]

約数ペア:

[(1, 21372480), (2, 10686240), (3, 7124160), (4, 5343120), (5, 4274496), (6, 3562080), (8, 2671560), (9, 2374720), (10, 2137248), (12, 1781040), (15, 1424832), (16, 1335780), (18, 1187360), (20, 1068624), (24, 890520), (30, 712416), (32, 667890), (36, 593680), (40, 534312), (41, 521280), (45, 474944), (48, 445260), (60, 356208), (64, 333945), (72, 296840), (80, 267156), (82, 260640), (90, 237472), (96, 222630), (120, 178104), (123, 173760), (144, 148420), (160, 133578), (164, 130320), (180, 118736), (181, 118080), (192, 111315), (205, 104256), (240, 89052), (246, 86880), (288, 74210), (320, 66789), (328, 65160), (360, 59368), (362, 59040), (369, 57920), (410, 52128), (480, 44526), (492, 43440), (543, 39360), (576, 37105), (615, 34752), (656, 32580), (720, 29684), (724, 29520), (738, 28960), (820, 26064), (905, 23616), (960, 22263), (984, 21720), (1086, 19680), (1230, 17376), (1312, 16290), (1440, 14842), (1448, 14760), (1476, 14480), (1629, 13120), (1640, 13032), (1810, 11808), (1845, 11584), (1968, 10860), (2172, 9840), (2460, 8688), (2624, 8145), (2715, 7872), (2880, 7421), (2896, 7380), (2952, 7240), (3258, 6560), (3280, 6516), (3620, 5904), (3690, 5792), (3936, 5430), (4344, 4920)]