19654440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:363

約数の個数: 128

約数和(自身を含む): 65197440

約数和(自身を除く): 45543000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 43, 52, 60, 65, 78, 86, 104, 120, 129, 130, 156, 172, 195, 215, 258, 260, 293, 312, 344, 390, 430, 516, 520, 559, 586, 645, 780, 860, 879, 1032, 1118, 1172, 1290, 1465, 1560, 1677, 1720, 1758, 2236, 2344, 2580, 2795, 2930, 3354, 3516, 3809, 4395, 4472, 5160, 5590, 5860, 6708, 7032, 7618, 8385, 8790, 11180, 11427, 11720, 12599, 13416, 15236, 16770, 17580, 19045, 22360, 22854, 25198, 30472, 33540, 35160, 37797, 38090, 45708, 50396, 57135, 62995, 67080, 75594, 76180, 91416, 100792, 114270, 125990, 151188, 152360, 163787, 188985, 228540, 251980, 302376, 327574, 377970, 457080, 491361, 503960, 655148, 755940, 818935, 982722, 1310296, 1511880, 1637870, 1965444, 2456805, 3275740, 3930888, 4913610, 6551480, 9827220, 19654440]

約数ペア:

[(1, 19654440), (2, 9827220), (3, 6551480), (4, 4913610), (5, 3930888), (6, 3275740), (8, 2456805), (10, 1965444), (12, 1637870), (13, 1511880), (15, 1310296), (20, 982722), (24, 818935), (26, 755940), (30, 655148), (39, 503960), (40, 491361), (43, 457080), (52, 377970), (60, 327574), (65, 302376), (78, 251980), (86, 228540), (104, 188985), (120, 163787), (129, 152360), (130, 151188), (156, 125990), (172, 114270), (195, 100792), (215, 91416), (258, 76180), (260, 75594), (293, 67080), (312, 62995), (344, 57135), (390, 50396), (430, 45708), (516, 38090), (520, 37797), (559, 35160), (586, 33540), (645, 30472), (780, 25198), (860, 22854), (879, 22360), (1032, 19045), (1118, 17580), (1172, 16770), (1290, 15236), (1465, 13416), (1560, 12599), (1677, 11720), (1720, 11427), (1758, 11180), (2236, 8790), (2344, 8385), (2580, 7618), (2795, 7032), (2930, 6708), (3354, 5860), (3516, 5590), (3809, 5160), (4395, 4472)]