215242920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2143}}^1$

素因数の和:2197

約数の個数: 160

約数和(自身を含む): 747141120

約数和(自身を除く): 531898200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 248, 270, 279, 310, 324, 360, 372, 405, 465, 540, 558, 620, 648, 744, 810, 837, 930, 1080, 1116, 1240, 1395, 1620, 1674, 1860, 2143, 2232, 2511, 2790, 3240, 3348, 3720, 4185, 4286, 5022, 5580, 6429, 6696, 8370, 8572, 10044, 10715, 11160, 12555, 12858, 16740, 17144, 19287, 20088, 21430, 25110, 25716, 32145, 33480, 38574, 42860, 50220, 51432, 57861, 64290, 66433, 77148, 85720, 96435, 100440, 115722, 128580, 132866, 154296, 173583, 192870, 199299, 231444, 257160, 265732, 289305, 332165, 347166, 385740, 398598, 462888, 531464, 578610, 597897, 664330, 694332, 771480, 797196, 867915, 996495, 1157220, 1195794, 1328660, 1388664, 1594392, 1735830, 1793691, 1992990, 2314440, 2391588, 2657320, 2989485, 3471660, 3587382, 3985980, 4783176, 5381073, 5978970, 6943320, 7174764, 7971960, 8968455, 10762146, 11957940, 14349528, 17936910, 21524292, 23915880, 26905365, 35873820, 43048584, 53810730, 71747640, 107621460, 215242920]

約数ペア:

[(1, 215242920), (2, 107621460), (3, 71747640), (4, 53810730), (5, 43048584), (6, 35873820), (8, 26905365), (9, 23915880), (10, 21524292), (12, 17936910), (15, 14349528), (18, 11957940), (20, 10762146), (24, 8968455), (27, 7971960), (30, 7174764), (31, 6943320), (36, 5978970), (40, 5381073), (45, 4783176), (54, 3985980), (60, 3587382), (62, 3471660), (72, 2989485), (81, 2657320), (90, 2391588), (93, 2314440), (108, 1992990), (120, 1793691), (124, 1735830), (135, 1594392), (155, 1388664), (162, 1328660), (180, 1195794), (186, 1157220), (216, 996495), (248, 867915), (270, 797196), (279, 771480), (310, 694332), (324, 664330), (360, 597897), (372, 578610), (405, 531464), (465, 462888), (540, 398598), (558, 385740), (620, 347166), (648, 332165), (744, 289305), (810, 265732), (837, 257160), (930, 231444), (1080, 199299), (1116, 192870), (1240, 173583), (1395, 154296), (1620, 132866), (1674, 128580), (1860, 115722), (2143, 100440), (2232, 96435), (2511, 85720), (2790, 77148), (3240, 66433), (3348, 64290), (3720, 57861), (4185, 51432), (4286, 50220), (5022, 42860), (5580, 38574), (6429, 33480), (6696, 32145), (8370, 25716), (8572, 25110), (10044, 21430), (10715, 20088), (11160, 19287), (12555, 17144), (12858, 16740)]