28220880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1993}}^1$

素因数の和:2068

約数の個数: 80

約数和(自身を含む): 89012160

約数和(自身を除く): 60791280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1770, 1993, 2360, 2832, 3540, 3986, 4720, 5979, 7080, 7972, 9965, 11958, 14160, 15944, 19930, 23916, 29895, 31888, 39860, 47832, 59790, 79720, 95664, 117587, 119580, 159440, 235174, 239160, 352761, 470348, 478320, 587935, 705522, 940696, 1175870, 1411044, 1763805, 1881392, 2351740, 2822088, 3527610, 4703480, 5644176, 7055220, 9406960, 14110440, 28220880]

約数ペア:

[(1, 28220880), (2, 14110440), (3, 9406960), (4, 7055220), (5, 5644176), (6, 4703480), (8, 3527610), (10, 2822088), (12, 2351740), (15, 1881392), (16, 1763805), (20, 1411044), (24, 1175870), (30, 940696), (40, 705522), (48, 587935), (59, 478320), (60, 470348), (80, 352761), (118, 239160), (120, 235174), (177, 159440), (236, 119580), (240, 117587), (295, 95664), (354, 79720), (472, 59790), (590, 47832), (708, 39860), (885, 31888), (944, 29895), (1180, 23916), (1416, 19930), (1770, 15944), (1993, 14160), (2360, 11958), (2832, 9965), (3540, 7972), (3986, 7080), (4720, 5979)]