61400020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 152449920

約数和(自身を除く): 91049900

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 37, 38, 44, 55, 74, 76, 95, 110, 148, 185, 190, 209, 220, 370, 380, 397, 407, 418, 703, 740, 794, 814, 836, 1045, 1406, 1588, 1628, 1985, 2035, 2090, 2812, 3515, 3970, 4070, 4180, 4367, 7030, 7543, 7733, 7940, 8140, 8734, 14060, 14689, 15086, 15466, 17468, 21835, 29378, 30172, 30932, 37715, 38665, 43670, 58756, 73445, 75430, 77330, 82973, 87340, 146890, 150860, 154660, 161579, 165946, 279091, 293780, 323158, 331892, 414865, 558182, 646316, 807895, 829730, 1116364, 1395455, 1615790, 1659460, 2790910, 3070001, 3231580, 5581820, 6140002, 12280004, 15350005, 30700010, 61400020]

約数ペア:

[(1, 61400020), (2, 30700010), (4, 15350005), (5, 12280004), (10, 6140002), (11, 5581820), (19, 3231580), (20, 3070001), (22, 2790910), (37, 1659460), (38, 1615790), (44, 1395455), (55, 1116364), (74, 829730), (76, 807895), (95, 646316), (110, 558182), (148, 414865), (185, 331892), (190, 323158), (209, 293780), (220, 279091), (370, 165946), (380, 161579), (397, 154660), (407, 150860), (418, 146890), (703, 87340), (740, 82973), (794, 77330), (814, 75430), (836, 73445), (1045, 58756), (1406, 43670), (1588, 38665), (1628, 37715), (1985, 30932), (2035, 30172), (2090, 29378), (2812, 21835), (3515, 17468), (3970, 15466), (4070, 15086), (4180, 14689), (4367, 14060), (7030, 8734), (7543, 8140), (7733, 7940)]