131175880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 340070400

約数和(自身を除く): 208894520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 59, 62, 88, 110, 118, 124, 155, 163, 220, 236, 248, 295, 310, 326, 341, 440, 472, 590, 620, 649, 652, 682, 815, 1180, 1240, 1298, 1304, 1364, 1630, 1705, 1793, 1829, 2360, 2596, 2728, 3245, 3260, 3410, 3586, 3658, 5053, 5192, 6490, 6520, 6820, 7172, 7316, 8965, 9145, 9617, 10106, 12980, 13640, 14344, 14632, 17930, 18290, 19234, 20119, 20212, 25265, 25960, 35860, 36580, 38468, 40238, 40424, 48085, 50530, 55583, 71720, 73160, 76936, 80476, 96170, 100595, 101060, 105787, 111166, 160952, 192340, 201190, 202120, 211574, 222332, 277915, 298127, 384680, 402380, 423148, 444664, 528935, 555830, 596254, 804760, 846296, 1057870, 1111660, 1192508, 1490635, 2115740, 2223320, 2385016, 2981270, 3279397, 4231480, 5962540, 6558794, 11925080, 13117588, 16396985, 26235176, 32793970, 65587940, 131175880]

約数ペア:

[(1, 131175880), (2, 65587940), (4, 32793970), (5, 26235176), (8, 16396985), (10, 13117588), (11, 11925080), (20, 6558794), (22, 5962540), (31, 4231480), (40, 3279397), (44, 2981270), (55, 2385016), (59, 2223320), (62, 2115740), (88, 1490635), (110, 1192508), (118, 1111660), (124, 1057870), (155, 846296), (163, 804760), (220, 596254), (236, 555830), (248, 528935), (295, 444664), (310, 423148), (326, 402380), (341, 384680), (440, 298127), (472, 277915), (590, 222332), (620, 211574), (649, 202120), (652, 201190), (682, 192340), (815, 160952), (1180, 111166), (1240, 105787), (1298, 101060), (1304, 100595), (1364, 96170), (1630, 80476), (1705, 76936), (1793, 73160), (1829, 71720), (2360, 55583), (2596, 50530), (2728, 48085), (3245, 40424), (3260, 40238), (3410, 38468), (3586, 36580), (3658, 35860), (5053, 25960), (5192, 25265), (6490, 20212), (6520, 20119), (6820, 19234), (7172, 18290), (7316, 17930), (8965, 14632), (9145, 14344), (9617, 13640), (10106, 12980)]