81365504080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1\times {\mathrm{5431}}^1$

素因数の和:6345

約数の個数: 160

約数和(自身を含む): 223473696768

約数和(自身を除く): 142108192688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 863, 868, 1085, 1240, 1726, 1736, 2170, 2480, 3452, 3472, 4315, 4340, 5431, 6041, 6904, 8630, 8680, 10862, 12082, 13808, 17260, 17360, 21724, 24164, 26753, 27155, 30205, 34520, 38017, 43448, 48328, 53506, 54310, 60410, 69040, 76034, 86896, 96656, 107012, 108620, 120820, 133765, 152068, 168361, 187271, 190085, 214024, 217240, 241640, 267530, 304136, 336722, 374542, 380170, 428048, 434480, 483280, 535060, 608272, 673444, 749084, 760340, 841805, 936355, 1070120, 1178527, 1346888, 1498168, 1520680, 1683610, 1872710, 2140240, 2357054, 2693776, 2996336, 3041360, 3367220, 3745420, 4686953, 4714108, 5892635, 6734440, 7490840, 9373906, 9428216, 11785270, 13468880, 14981680, 18747812, 18856432, 23434765, 23570540, 32808671, 37495624, 46869530, 47141080, 65617342, 74991248, 93739060, 94282160, 131234684, 145295543, 164043355, 187478120, 262469368, 290591086, 328086710, 374956240, 524938736, 581182172, 656173420, 726477715, 1017068801, 1162364344, 1312346840, 1452955430, 2034137602, 2324728688, 2624693680, 2905910860, 4068275204, 5085344005, 5811821720, 8136550408, 10170688010, 11623643440, 16273100816, 20341376020, 40682752040, 81365504080]

約数ペア:

[(1, 81365504080), (2, 40682752040), (4, 20341376020), (5, 16273100816), (7, 11623643440), (8, 10170688010), (10, 8136550408), (14, 5811821720), (16, 5085344005), (20, 4068275204), (28, 2905910860), (31, 2624693680), (35, 2324728688), (40, 2034137602), (56, 1452955430), (62, 1312346840), (70, 1162364344), (80, 1017068801), (112, 726477715), (124, 656173420), (140, 581182172), (155, 524938736), (217, 374956240), (248, 328086710), (280, 290591086), (310, 262469368), (434, 187478120), (496, 164043355), (560, 145295543), (620, 131234684), (863, 94282160), (868, 93739060), (1085, 74991248), (1240, 65617342), (1726, 47141080), (1736, 46869530), (2170, 37495624), (2480, 32808671), (3452, 23570540), (3472, 23434765), (4315, 18856432), (4340, 18747812), (5431, 14981680), (6041, 13468880), (6904, 11785270), (8630, 9428216), (8680, 9373906), (10862, 7490840), (12082, 6734440), (13808, 5892635), (17260, 4714108), (17360, 4686953), (21724, 3745420), (24164, 3367220), (26753, 3041360), (27155, 2996336), (30205, 2693776), (34520, 2357054), (38017, 2140240), (43448, 1872710), (48328, 1683610), (53506, 1520680), (54310, 1498168), (60410, 1346888), (69040, 1178527), (76034, 1070120), (86896, 936355), (96656, 841805), (107012, 760340), (108620, 749084), (120820, 673444), (133765, 608272), (152068, 535060), (168361, 483280), (187271, 434480), (190085, 428048), (214024, 380170), (217240, 374542), (241640, 336722), (267530, 304136)]