20799840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2549}}^1$

素因数の和:2584

約数の個数: 96

約数和(自身を含む): 69400800

約数和(自身を除く): 48600960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2549, 2720, 4080, 5098, 7647, 8160, 10196, 12745, 15294, 20392, 25490, 30588, 38235, 40784, 43333, 50980, 61176, 76470, 81568, 86666, 101960, 122352, 129999, 152940, 173332, 203920, 216665, 244704, 259998, 305880, 346664, 407840, 433330, 519996, 611760, 649995, 693328, 866660, 1039992, 1223520, 1299990, 1386656, 1733320, 2079984, 2599980, 3466640, 4159968, 5199960, 6933280, 10399920, 20799840]

約数ペア:

[(1, 20799840), (2, 10399920), (3, 6933280), (4, 5199960), (5, 4159968), (6, 3466640), (8, 2599980), (10, 2079984), (12, 1733320), (15, 1386656), (16, 1299990), (17, 1223520), (20, 1039992), (24, 866660), (30, 693328), (32, 649995), (34, 611760), (40, 519996), (48, 433330), (51, 407840), (60, 346664), (68, 305880), (80, 259998), (85, 244704), (96, 216665), (102, 203920), (120, 173332), (136, 152940), (160, 129999), (170, 122352), (204, 101960), (240, 86666), (255, 81568), (272, 76470), (340, 61176), (408, 50980), (480, 43333), (510, 40784), (544, 38235), (680, 30588), (816, 25490), (1020, 20392), (1360, 15294), (1632, 12745), (2040, 10196), (2549, 8160), (2720, 7647), (4080, 5098)]