28791040

素因数分解:

$2^8\times 5^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 70051968

約数和(自身を除く): 41260928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 256, 271, 320, 332, 415, 542, 640, 664, 830, 1084, 1280, 1328, 1355, 1660, 2168, 2656, 2710, 3320, 4336, 5312, 5420, 6640, 8672, 10624, 10840, 13280, 17344, 21248, 21680, 22493, 26560, 34688, 43360, 44986, 53120, 69376, 86720, 89972, 106240, 112465, 173440, 179944, 224930, 346880, 359888, 449860, 719776, 899720, 1439552, 1799440, 2879104, 3598880, 5758208, 7197760, 14395520, 28791040]

約数ペア:

[(1, 28791040), (2, 14395520), (4, 7197760), (5, 5758208), (8, 3598880), (10, 2879104), (16, 1799440), (20, 1439552), (32, 899720), (40, 719776), (64, 449860), (80, 359888), (83, 346880), (128, 224930), (160, 179944), (166, 173440), (256, 112465), (271, 106240), (320, 89972), (332, 86720), (415, 69376), (542, 53120), (640, 44986), (664, 43360), (830, 34688), (1084, 26560), (1280, 22493), (1328, 21680), (1355, 21248), (1660, 17344), (2168, 13280), (2656, 10840), (2710, 10624), (3320, 8672), (4336, 6640), (5312, 5420)]