72571720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2083}}^1$

素因数の和:2174

約数の個数: 64

約数和(自身を含む): 178557120

約数和(自身を除く): 105985400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1340, 1742, 2083, 2680, 3484, 4166, 4355, 6968, 8332, 8710, 10415, 16664, 17420, 20830, 27079, 34840, 41660, 54158, 83320, 108316, 135395, 139561, 216632, 270790, 279122, 541580, 558244, 697805, 1083160, 1116488, 1395610, 1814293, 2791220, 3628586, 5582440, 7257172, 9071465, 14514344, 18142930, 36285860, 72571720]

約数ペア:

[(1, 72571720), (2, 36285860), (4, 18142930), (5, 14514344), (8, 9071465), (10, 7257172), (13, 5582440), (20, 3628586), (26, 2791220), (40, 1814293), (52, 1395610), (65, 1116488), (67, 1083160), (104, 697805), (130, 558244), (134, 541580), (260, 279122), (268, 270790), (335, 216632), (520, 139561), (536, 135395), (670, 108316), (871, 83320), (1340, 54158), (1742, 41660), (2083, 34840), (2680, 27079), (3484, 20830), (4166, 17420), (4355, 16664), (6968, 10415), (8332, 8710)]