1621483520

素因数分解:

$2^{13}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1339

約数の個数: 112

約数和(自身を含む): 4019995008

約数和(自身を除く): 2398511488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1277, 1280, 1984, 2048, 2480, 2554, 2560, 3968, 4096, 4960, 5108, 5120, 6385, 7936, 8192, 9920, 10216, 10240, 12770, 15872, 19840, 20432, 20480, 25540, 31744, 39587, 39680, 40864, 40960, 51080, 63488, 79174, 79360, 81728, 102160, 126976, 158348, 158720, 163456, 197935, 204320, 253952, 316696, 317440, 326912, 395870, 408640, 633392, 634880, 653824, 791740, 817280, 1266784, 1269760, 1307648, 1583480, 1634560, 2533568, 2615296, 3166960, 3269120, 5067136, 5230592, 6333920, 6538240, 10134272, 10461184, 12667840, 13076480, 20268544, 25335680, 26152960, 40537088, 50671360, 52305920, 81074176, 101342720, 162148352, 202685440, 324296704, 405370880, 810741760, 1621483520]

約数ペア:

[(1, 1621483520), (2, 810741760), (4, 405370880), (5, 324296704), (8, 202685440), (10, 162148352), (16, 101342720), (20, 81074176), (31, 52305920), (32, 50671360), (40, 40537088), (62, 26152960), (64, 25335680), (80, 20268544), (124, 13076480), (128, 12667840), (155, 10461184), (160, 10134272), (248, 6538240), (256, 6333920), (310, 5230592), (320, 5067136), (496, 3269120), (512, 3166960), (620, 2615296), (640, 2533568), (992, 1634560), (1024, 1583480), (1240, 1307648), (1277, 1269760), (1280, 1266784), (1984, 817280), (2048, 791740), (2480, 653824), (2554, 634880), (2560, 633392), (3968, 408640), (4096, 395870), (4960, 326912), (5108, 317440), (5120, 316696), (6385, 253952), (7936, 204320), (8192, 197935), (9920, 163456), (10216, 158720), (10240, 158348), (12770, 126976), (15872, 102160), (19840, 81728), (20432, 79360), (20480, 79174), (25540, 63488), (31744, 51080), (39587, 40960), (39680, 40864)]