85232020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 198696960

約数和(自身を除く): 113464940

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 43, 46, 62, 86, 92, 115, 124, 139, 155, 172, 215, 230, 278, 310, 430, 460, 556, 620, 695, 713, 860, 989, 1333, 1390, 1426, 1978, 2666, 2780, 2852, 3197, 3565, 3956, 4309, 4945, 5332, 5977, 6394, 6665, 7130, 8618, 9890, 11954, 12788, 13330, 14260, 15985, 17236, 19780, 21545, 23908, 26660, 29885, 30659, 31970, 43090, 59770, 61318, 63940, 86180, 99107, 119540, 122636, 137471, 153295, 185287, 198214, 274942, 306590, 370574, 396428, 495535, 549884, 613180, 687355, 741148, 926435, 991070, 1374710, 1852870, 1982140, 2749420, 3705740, 4261601, 8523202, 17046404, 21308005, 42616010, 85232020]

約数ペア:

[(1, 85232020), (2, 42616010), (4, 21308005), (5, 17046404), (10, 8523202), (20, 4261601), (23, 3705740), (31, 2749420), (43, 1982140), (46, 1852870), (62, 1374710), (86, 991070), (92, 926435), (115, 741148), (124, 687355), (139, 613180), (155, 549884), (172, 495535), (215, 396428), (230, 370574), (278, 306590), (310, 274942), (430, 198214), (460, 185287), (556, 153295), (620, 137471), (695, 122636), (713, 119540), (860, 99107), (989, 86180), (1333, 63940), (1390, 61318), (1426, 59770), (1978, 43090), (2666, 31970), (2780, 30659), (2852, 29885), (3197, 26660), (3565, 23908), (3956, 21545), (4309, 19780), (4945, 17236), (5332, 15985), (5977, 14260), (6394, 13330), (6665, 12788), (7130, 11954), (8618, 9890)]