642287760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:837

約数の個数: 160

約数和(自身を含む): 2074152960

約数和(自身を除く): 1431865200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 131, 155, 186, 240, 248, 262, 310, 372, 393, 465, 496, 524, 620, 655, 659, 744, 786, 930, 1048, 1240, 1310, 1318, 1488, 1572, 1860, 1965, 1977, 2096, 2480, 2620, 2636, 3144, 3295, 3720, 3930, 3954, 4061, 5240, 5272, 6288, 6590, 7440, 7860, 7908, 8122, 9885, 10480, 10544, 12183, 13180, 15720, 15816, 16244, 19770, 20305, 20429, 24366, 26360, 31440, 31632, 32488, 39540, 40610, 40858, 48732, 52720, 60915, 61287, 64976, 79080, 81220, 81716, 86329, 97464, 102145, 121830, 122574, 158160, 162440, 163432, 172658, 194928, 204290, 243660, 245148, 258987, 306435, 324880, 326864, 345316, 408580, 431645, 487320, 490296, 517974, 612870, 690632, 817160, 863290, 974640, 980592, 1035948, 1225740, 1294935, 1381264, 1634320, 1726580, 2071896, 2451480, 2589870, 2676199, 3453160, 4143792, 4902960, 5179740, 5352398, 6906320, 8028597, 10359480, 10704796, 13380995, 16057194, 20718960, 21409592, 26761990, 32114388, 40142985, 42819184, 53523980, 64228776, 80285970, 107047960, 128457552, 160571940, 214095920, 321143880, 642287760]

約数ペア:

[(1, 642287760), (2, 321143880), (3, 214095920), (4, 160571940), (5, 128457552), (6, 107047960), (8, 80285970), (10, 64228776), (12, 53523980), (15, 42819184), (16, 40142985), (20, 32114388), (24, 26761990), (30, 21409592), (31, 20718960), (40, 16057194), (48, 13380995), (60, 10704796), (62, 10359480), (80, 8028597), (93, 6906320), (120, 5352398), (124, 5179740), (131, 4902960), (155, 4143792), (186, 3453160), (240, 2676199), (248, 2589870), (262, 2451480), (310, 2071896), (372, 1726580), (393, 1634320), (465, 1381264), (496, 1294935), (524, 1225740), (620, 1035948), (655, 980592), (659, 974640), (744, 863290), (786, 817160), (930, 690632), (1048, 612870), (1240, 517974), (1310, 490296), (1318, 487320), (1488, 431645), (1572, 408580), (1860, 345316), (1965, 326864), (1977, 324880), (2096, 306435), (2480, 258987), (2620, 245148), (2636, 243660), (3144, 204290), (3295, 194928), (3720, 172658), (3930, 163432), (3954, 162440), (4061, 158160), (5240, 122574), (5272, 121830), (6288, 102145), (6590, 97464), (7440, 86329), (7860, 81716), (7908, 81220), (8122, 79080), (9885, 64976), (10480, 61287), (10544, 60915), (12183, 52720), (13180, 48732), (15720, 40858), (15816, 40610), (16244, 39540), (19770, 32488), (20305, 31632), (20429, 31440), (24366, 26360)]