289345540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^2$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 675275328

約数和(自身を除く): 385929788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 113, 206, 220, 226, 412, 452, 515, 565, 1030, 1130, 1133, 1243, 2060, 2260, 2266, 2486, 4532, 4972, 5665, 6215, 11330, 11639, 12430, 12769, 22660, 23278, 24860, 25538, 46556, 51076, 58195, 63845, 116390, 127690, 128029, 140459, 232780, 255380, 256058, 280918, 512116, 561836, 640145, 702295, 1280290, 1315207, 1404590, 2560580, 2630414, 2809180, 5260828, 6576035, 13152070, 14467277, 26304140, 28934554, 57869108, 72336385, 144672770, 289345540]

約数ペア:

[(1, 289345540), (2, 144672770), (4, 72336385), (5, 57869108), (10, 28934554), (11, 26304140), (20, 14467277), (22, 13152070), (44, 6576035), (55, 5260828), (103, 2809180), (110, 2630414), (113, 2560580), (206, 1404590), (220, 1315207), (226, 1280290), (412, 702295), (452, 640145), (515, 561836), (565, 512116), (1030, 280918), (1130, 256058), (1133, 255380), (1243, 232780), (2060, 140459), (2260, 128029), (2266, 127690), (2486, 116390), (4532, 63845), (4972, 58195), (5665, 51076), (6215, 46556), (11330, 25538), (11639, 24860), (12430, 23278), (12769, 22660)]