400554841520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1\times {\mathrm{6691}}^1$

素因数の和:7075

約数の個数: 160

約数和(自身を含む): 975057592320

約数和(自身を除く): 574502750800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 101, 124, 155, 202, 239, 248, 310, 404, 478, 496, 505, 620, 808, 956, 1010, 1195, 1240, 1616, 1912, 2020, 2390, 2480, 3131, 3824, 4040, 4780, 6262, 6691, 7409, 8080, 9560, 12524, 13382, 14818, 15655, 19120, 24139, 25048, 26764, 29636, 31310, 33455, 37045, 48278, 50096, 53528, 59272, 62620, 66910, 74090, 96556, 107056, 118544, 120695, 125240, 133820, 148180, 193112, 207421, 241390, 250480, 267640, 296360, 386224, 414842, 482780, 535280, 592720, 675791, 748309, 829684, 965560, 1037105, 1351582, 1496618, 1599149, 1659368, 1931120, 2074210, 2703164, 2993236, 3198298, 3318736, 3378955, 3741545, 4148420, 5406328, 5986472, 6396596, 6757910, 7483090, 7995745, 8296840, 10812656, 11972944, 12793192, 13515820, 14966180, 15991490, 16593680, 20949521, 25586384, 27031640, 29932360, 31982980, 41899042, 49573619, 54063280, 59864720, 63965960, 83798084, 99147238, 104747605, 127931920, 161514049, 167596168, 198294476, 209495210, 247868095, 323028098, 335192336, 396588952, 418990420, 495736190, 646056196, 793177904, 807570245, 837980840, 991472380, 1292112392, 1615140490, 1675961680, 1982944760, 2584224784, 3230280980, 3965889520, 5006935519, 6460561960, 10013871038, 12921123920, 20027742076, 25034677595, 40055484152, 50069355190, 80110968304, 100138710380, 200277420760, 400554841520]

約数ペア:

[(1, 400554841520), (2, 200277420760), (4, 100138710380), (5, 80110968304), (8, 50069355190), (10, 40055484152), (16, 25034677595), (20, 20027742076), (31, 12921123920), (40, 10013871038), (62, 6460561960), (80, 5006935519), (101, 3965889520), (124, 3230280980), (155, 2584224784), (202, 1982944760), (239, 1675961680), (248, 1615140490), (310, 1292112392), (404, 991472380), (478, 837980840), (496, 807570245), (505, 793177904), (620, 646056196), (808, 495736190), (956, 418990420), (1010, 396588952), (1195, 335192336), (1240, 323028098), (1616, 247868095), (1912, 209495210), (2020, 198294476), (2390, 167596168), (2480, 161514049), (3131, 127931920), (3824, 104747605), (4040, 99147238), (4780, 83798084), (6262, 63965960), (6691, 59864720), (7409, 54063280), (8080, 49573619), (9560, 41899042), (12524, 31982980), (13382, 29932360), (14818, 27031640), (15655, 25586384), (19120, 20949521), (24139, 16593680), (25048, 15991490), (26764, 14966180), (29636, 13515820), (31310, 12793192), (33455, 11972944), (37045, 10812656), (48278, 8296840), (50096, 7995745), (53528, 7483090), (59272, 6757910), (62620, 6396596), (66910, 5986472), (74090, 5406328), (96556, 4148420), (107056, 3741545), (118544, 3378955), (120695, 3318736), (125240, 3198298), (133820, 2993236), (148180, 2703164), (193112, 2074210), (207421, 1931120), (241390, 1659368), (250480, 1599149), (267640, 1496618), (296360, 1351582), (386224, 1037105), (414842, 965560), (482780, 829684), (535280, 748309), (592720, 675791)]