28480760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1321}}^1$

素因数の和:1357

約数の個数: 96

約数和(自身を含む): 81382320

約数和(自身を除く): 52901560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 980, 1078, 1321, 1540, 1960, 2156, 2642, 2695, 3080, 4312, 5284, 5390, 6605, 9247, 10568, 10780, 13210, 14531, 18494, 21560, 26420, 29062, 36988, 46235, 52840, 58124, 64729, 72655, 73976, 92470, 101717, 116248, 129458, 145310, 184940, 203434, 258916, 290620, 323645, 369880, 406868, 508585, 517832, 581240, 647290, 712019, 813736, 1017170, 1294580, 1424038, 2034340, 2589160, 2848076, 3560095, 4068680, 5696152, 7120190, 14240380, 28480760]

約数ペア:

[(1, 28480760), (2, 14240380), (4, 7120190), (5, 5696152), (7, 4068680), (8, 3560095), (10, 2848076), (11, 2589160), (14, 2034340), (20, 1424038), (22, 1294580), (28, 1017170), (35, 813736), (40, 712019), (44, 647290), (49, 581240), (55, 517832), (56, 508585), (70, 406868), (77, 369880), (88, 323645), (98, 290620), (110, 258916), (140, 203434), (154, 184940), (196, 145310), (220, 129458), (245, 116248), (280, 101717), (308, 92470), (385, 73976), (392, 72655), (440, 64729), (490, 58124), (539, 52840), (616, 46235), (770, 36988), (980, 29062), (1078, 26420), (1321, 21560), (1540, 18494), (1960, 14531), (2156, 13210), (2642, 10780), (2695, 10568), (3080, 9247), (4312, 6605), (5284, 5390)]