19546940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 51093504

約数和(自身を除く): 31546564

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 43, 68, 70, 85, 86, 119, 140, 170, 172, 191, 215, 238, 301, 340, 382, 430, 476, 595, 602, 731, 764, 860, 955, 1190, 1204, 1337, 1462, 1505, 1910, 2380, 2674, 2924, 3010, 3247, 3655, 3820, 5117, 5348, 6020, 6494, 6685, 7310, 8213, 10234, 12988, 13370, 14620, 16235, 16426, 20468, 22729, 25585, 26740, 32470, 32852, 41065, 45458, 51170, 57491, 64940, 82130, 90916, 102340, 113645, 114982, 139621, 164260, 227290, 229964, 279242, 287455, 454580, 558484, 574910, 698105, 977347, 1149820, 1396210, 1954694, 2792420, 3909388, 4886735, 9773470, 19546940]

約数ペア:

[(1, 19546940), (2, 9773470), (4, 4886735), (5, 3909388), (7, 2792420), (10, 1954694), (14, 1396210), (17, 1149820), (20, 977347), (28, 698105), (34, 574910), (35, 558484), (43, 454580), (68, 287455), (70, 279242), (85, 229964), (86, 227290), (119, 164260), (140, 139621), (170, 114982), (172, 113645), (191, 102340), (215, 90916), (238, 82130), (301, 64940), (340, 57491), (382, 51170), (430, 45458), (476, 41065), (595, 32852), (602, 32470), (731, 26740), (764, 25585), (860, 22729), (955, 20468), (1190, 16426), (1204, 16235), (1337, 14620), (1462, 13370), (1505, 12988), (1910, 10234), (2380, 8213), (2674, 7310), (2924, 6685), (3010, 6494), (3247, 6020), (3655, 5348), (3820, 5117)]