28008760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 69058080

約数和(自身を除く): 41049320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 883, 1220, 1586, 1766, 2440, 3172, 3532, 3965, 4415, 6344, 7064, 7930, 8830, 11479, 15860, 17660, 22958, 31720, 35320, 45916, 53863, 57395, 91832, 107726, 114790, 215452, 229580, 269315, 430904, 459160, 538630, 700219, 1077260, 1400438, 2154520, 2800876, 3501095, 5601752, 7002190, 14004380, 28008760]

約数ペア:

[(1, 28008760), (2, 14004380), (4, 7002190), (5, 5601752), (8, 3501095), (10, 2800876), (13, 2154520), (20, 1400438), (26, 1077260), (40, 700219), (52, 538630), (61, 459160), (65, 430904), (104, 269315), (122, 229580), (130, 215452), (244, 114790), (260, 107726), (305, 91832), (488, 57395), (520, 53863), (610, 45916), (793, 35320), (883, 31720), (1220, 22958), (1586, 17660), (1766, 15860), (2440, 11479), (3172, 8830), (3532, 7930), (3965, 7064), (4415, 6344)]