211253840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:377

約数の個数: 160

約数和(自身を含む): 595009536

約数和(自身を除く): 383755696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 172, 215, 217, 248, 280, 283, 301, 310, 344, 430, 434, 496, 560, 566, 602, 620, 688, 860, 868, 1085, 1132, 1204, 1240, 1333, 1415, 1505, 1720, 1736, 1981, 2170, 2264, 2408, 2480, 2666, 2830, 3010, 3440, 3472, 3962, 4340, 4528, 4816, 5332, 5660, 6020, 6665, 7924, 8680, 8773, 9331, 9905, 10664, 11320, 12040, 12169, 13330, 15848, 17360, 17546, 18662, 19810, 21328, 22640, 24080, 24338, 26660, 31696, 35092, 37324, 39620, 43865, 46655, 48676, 53320, 60845, 61411, 70184, 74648, 79240, 85183, 87730, 93310, 97352, 106640, 121690, 122822, 140368, 149296, 158480, 170366, 175460, 186620, 194704, 243380, 245644, 307055, 340732, 350920, 373240, 377239, 425915, 486760, 491288, 614110, 681464, 701840, 746480, 754478, 851830, 973520, 982576, 1228220, 1362928, 1508956, 1703660, 1886195, 2456440, 2640673, 3017912, 3407320, 3772390, 4912880, 5281346, 6035824, 6814640, 7544780, 10562692, 13203365, 15089560, 21125384, 26406730, 30179120, 42250768, 52813460, 105626920, 211253840]

約数ペア:

[(1, 211253840), (2, 105626920), (4, 52813460), (5, 42250768), (7, 30179120), (8, 26406730), (10, 21125384), (14, 15089560), (16, 13203365), (20, 10562692), (28, 7544780), (31, 6814640), (35, 6035824), (40, 5281346), (43, 4912880), (56, 3772390), (62, 3407320), (70, 3017912), (80, 2640673), (86, 2456440), (112, 1886195), (124, 1703660), (140, 1508956), (155, 1362928), (172, 1228220), (215, 982576), (217, 973520), (248, 851830), (280, 754478), (283, 746480), (301, 701840), (310, 681464), (344, 614110), (430, 491288), (434, 486760), (496, 425915), (560, 377239), (566, 373240), (602, 350920), (620, 340732), (688, 307055), (860, 245644), (868, 243380), (1085, 194704), (1132, 186620), (1204, 175460), (1240, 170366), (1333, 158480), (1415, 149296), (1505, 140368), (1720, 122822), (1736, 121690), (1981, 106640), (2170, 97352), (2264, 93310), (2408, 87730), (2480, 85183), (2666, 79240), (2830, 74648), (3010, 70184), (3440, 61411), (3472, 60845), (3962, 53320), (4340, 48676), (4528, 46655), (4816, 43865), (5332, 39620), (5660, 37324), (6020, 35092), (6665, 31696), (7924, 26660), (8680, 24338), (8773, 24080), (9331, 22640), (9905, 21328), (10664, 19810), (11320, 18662), (12040, 17546), (12169, 17360), (13330, 15848)]