16171220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 38498712

約数和(自身を除く): 22327492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 41, 52, 65, 74, 82, 130, 148, 164, 185, 205, 260, 370, 410, 481, 533, 740, 820, 962, 1066, 1517, 1681, 1924, 2132, 2405, 2665, 3034, 3362, 4810, 5330, 6068, 6724, 7585, 8405, 9620, 10660, 15170, 16810, 19721, 21853, 30340, 33620, 39442, 43706, 62197, 78884, 87412, 98605, 109265, 124394, 197210, 218530, 248788, 310985, 394420, 437060, 621970, 808561, 1243940, 1617122, 3234244, 4042805, 8085610, 16171220]

約数ペア:

[(1, 16171220), (2, 8085610), (4, 4042805), (5, 3234244), (10, 1617122), (13, 1243940), (20, 808561), (26, 621970), (37, 437060), (41, 394420), (52, 310985), (65, 248788), (74, 218530), (82, 197210), (130, 124394), (148, 109265), (164, 98605), (185, 87412), (205, 78884), (260, 62197), (370, 43706), (410, 39442), (481, 33620), (533, 30340), (740, 21853), (820, 19721), (962, 16810), (1066, 15170), (1517, 10660), (1681, 9620), (1924, 8405), (2132, 7585), (2405, 6724), (2665, 6068), (3034, 5330), (3362, 4810)]