81538920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{733}}^1$

素因数の和:856

約数の個数: 128

約数和(自身を含む): 274809600

約数和(自身を除く): 193270680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 103, 108, 120, 135, 180, 206, 216, 270, 309, 360, 412, 515, 540, 618, 733, 824, 927, 1030, 1080, 1236, 1466, 1545, 1854, 2060, 2199, 2472, 2781, 2932, 3090, 3665, 3708, 4120, 4398, 4635, 5562, 5864, 6180, 6597, 7330, 7416, 8796, 9270, 10995, 11124, 12360, 13194, 13905, 14660, 17592, 18540, 19791, 21990, 22248, 26388, 27810, 29320, 32985, 37080, 39582, 43980, 52776, 55620, 65970, 75499, 79164, 87960, 98955, 111240, 131940, 150998, 158328, 197910, 226497, 263880, 301996, 377495, 395820, 452994, 603992, 679491, 754990, 791640, 905988, 1132485, 1358982, 1509980, 1811976, 2038473, 2264970, 2717964, 3019960, 3397455, 4076946, 4529940, 5435928, 6794910, 8153892, 9059880, 10192365, 13589820, 16307784, 20384730, 27179640, 40769460, 81538920]

約数ペア:

[(1, 81538920), (2, 40769460), (3, 27179640), (4, 20384730), (5, 16307784), (6, 13589820), (8, 10192365), (9, 9059880), (10, 8153892), (12, 6794910), (15, 5435928), (18, 4529940), (20, 4076946), (24, 3397455), (27, 3019960), (30, 2717964), (36, 2264970), (40, 2038473), (45, 1811976), (54, 1509980), (60, 1358982), (72, 1132485), (90, 905988), (103, 791640), (108, 754990), (120, 679491), (135, 603992), (180, 452994), (206, 395820), (216, 377495), (270, 301996), (309, 263880), (360, 226497), (412, 197910), (515, 158328), (540, 150998), (618, 131940), (733, 111240), (824, 98955), (927, 87960), (1030, 79164), (1080, 75499), (1236, 65970), (1466, 55620), (1545, 52776), (1854, 43980), (2060, 39582), (2199, 37080), (2472, 32985), (2781, 29320), (2932, 27810), (3090, 26388), (3665, 22248), (3708, 21990), (4120, 19791), (4398, 18540), (4635, 17592), (5562, 14660), (5864, 13905), (6180, 13194), (6597, 12360), (7330, 11124), (7416, 10995), (8796, 9270)]