12921837260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1347

約数の個数: 96

約数和(自身を含む): 28432857600

約数和(自身を除く): 15511020340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 149, 155, 274, 298, 310, 548, 596, 620, 685, 745, 1021, 1370, 1490, 2042, 2740, 2980, 4084, 4247, 4619, 5105, 8494, 9238, 10210, 16988, 18476, 20413, 20420, 21235, 23095, 31651, 40826, 42470, 46190, 63302, 81652, 84940, 92380, 102065, 126604, 139877, 152129, 158255, 204130, 279754, 304258, 316510, 408260, 559508, 608516, 632803, 633020, 699385, 760645, 1265606, 1398770, 1521290, 2531212, 2797540, 3042580, 3164015, 4336187, 4715999, 6328030, 8672374, 9431998, 12656060, 17344748, 18863996, 20841673, 21680935, 23579995, 41683346, 43361870, 47159990, 83366692, 86723740, 94319980, 104208365, 208416730, 416833460, 646091863, 1292183726, 2584367452, 3230459315, 6460918630, 12921837260]

約数ペア:

[(1, 12921837260), (2, 6460918630), (4, 3230459315), (5, 2584367452), (10, 1292183726), (20, 646091863), (31, 416833460), (62, 208416730), (124, 104208365), (137, 94319980), (149, 86723740), (155, 83366692), (274, 47159990), (298, 43361870), (310, 41683346), (548, 23579995), (596, 21680935), (620, 20841673), (685, 18863996), (745, 17344748), (1021, 12656060), (1370, 9431998), (1490, 8672374), (2042, 6328030), (2740, 4715999), (2980, 4336187), (4084, 3164015), (4247, 3042580), (4619, 2797540), (5105, 2531212), (8494, 1521290), (9238, 1398770), (10210, 1265606), (16988, 760645), (18476, 699385), (20413, 633020), (20420, 632803), (21235, 608516), (23095, 559508), (31651, 408260), (40826, 316510), (42470, 304258), (46190, 279754), (63302, 204130), (81652, 158255), (84940, 152129), (92380, 139877), (102065, 126604)]