657135520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:451

約数の個数: 144

約数和(自身を含む): 1695955968

約数和(自身を除く): 1038820448

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 361, 367, 380, 496, 589, 608, 620, 722, 734, 760, 992, 1178, 1240, 1444, 1468, 1520, 1805, 1835, 2356, 2480, 2888, 2936, 2945, 3040, 3610, 3670, 4712, 4960, 5776, 5872, 5890, 6973, 7220, 7340, 9424, 11191, 11377, 11552, 11744, 11780, 13946, 14440, 14680, 18848, 22382, 22754, 23560, 27892, 28880, 29360, 34865, 44764, 45508, 47120, 55784, 55955, 56885, 57760, 58720, 69730, 89528, 91016, 94240, 111568, 111910, 113770, 132487, 139460, 179056, 182032, 216163, 223136, 223820, 227540, 264974, 278920, 358112, 364064, 432326, 447640, 455080, 529948, 557840, 662435, 864652, 895280, 910160, 1059896, 1080815, 1115680, 1324870, 1729304, 1790560, 1820320, 2119792, 2161630, 2649740, 3458608, 4107097, 4239584, 4323260, 5299480, 6917216, 8214194, 8646520, 10598960, 16428388, 17293040, 20535485, 21197920, 32856776, 34586080, 41070970, 65713552, 82141940, 131427104, 164283880, 328567760, 657135520]

約数ペア:

[(1, 657135520), (2, 328567760), (4, 164283880), (5, 131427104), (8, 82141940), (10, 65713552), (16, 41070970), (19, 34586080), (20, 32856776), (31, 21197920), (32, 20535485), (38, 17293040), (40, 16428388), (62, 10598960), (76, 8646520), (80, 8214194), (95, 6917216), (124, 5299480), (152, 4323260), (155, 4239584), (160, 4107097), (190, 3458608), (248, 2649740), (304, 2161630), (310, 2119792), (361, 1820320), (367, 1790560), (380, 1729304), (496, 1324870), (589, 1115680), (608, 1080815), (620, 1059896), (722, 910160), (734, 895280), (760, 864652), (992, 662435), (1178, 557840), (1240, 529948), (1444, 455080), (1468, 447640), (1520, 432326), (1805, 364064), (1835, 358112), (2356, 278920), (2480, 264974), (2888, 227540), (2936, 223820), (2945, 223136), (3040, 216163), (3610, 182032), (3670, 179056), (4712, 139460), (4960, 132487), (5776, 113770), (5872, 111910), (5890, 111568), (6973, 94240), (7220, 91016), (7340, 89528), (9424, 69730), (11191, 58720), (11377, 57760), (11552, 56885), (11744, 55955), (11780, 55784), (13946, 47120), (14440, 45508), (14680, 44764), (18848, 34865), (22382, 29360), (22754, 28880), (23560, 27892)]