19001920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:540

約数の個数: 112

約数和(自身を含む): 54864000

約数和(自身を除く): 35862080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 499, 544, 560, 595, 680, 952, 998, 1088, 1120, 1190, 1360, 1904, 1996, 2240, 2380, 2495, 2720, 3493, 3808, 3992, 4760, 4990, 5440, 6986, 7616, 7984, 8483, 9520, 9980, 13972, 15968, 16966, 17465, 19040, 19960, 27944, 31936, 33932, 34930, 38080, 39920, 42415, 55888, 59381, 67864, 69860, 79840, 84830, 111776, 118762, 135728, 139720, 159680, 169660, 223552, 237524, 271456, 279440, 296905, 339320, 475048, 542912, 558880, 593810, 678640, 950096, 1117760, 1187620, 1357280, 1900192, 2375240, 2714560, 3800384, 4750480, 9500960, 19001920]

約数ペア:

[(1, 19001920), (2, 9500960), (4, 4750480), (5, 3800384), (7, 2714560), (8, 2375240), (10, 1900192), (14, 1357280), (16, 1187620), (17, 1117760), (20, 950096), (28, 678640), (32, 593810), (34, 558880), (35, 542912), (40, 475048), (56, 339320), (64, 296905), (68, 279440), (70, 271456), (80, 237524), (85, 223552), (112, 169660), (119, 159680), (136, 139720), (140, 135728), (160, 118762), (170, 111776), (224, 84830), (238, 79840), (272, 69860), (280, 67864), (320, 59381), (340, 55888), (448, 42415), (476, 39920), (499, 38080), (544, 34930), (560, 33932), (595, 31936), (680, 27944), (952, 19960), (998, 19040), (1088, 17465), (1120, 16966), (1190, 15968), (1360, 13972), (1904, 9980), (1996, 9520), (2240, 8483), (2380, 7984), (2495, 7616), (2720, 6986), (3493, 5440), (3808, 4990), (3992, 4760)]