17719890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 45211392

約数和(自身を除く): 27491502

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 421, 610, 690, 842, 915, 1263, 1403, 1830, 2105, 2526, 2806, 4209, 4210, 6315, 7015, 8418, 9683, 12630, 14030, 19366, 21045, 25681, 29049, 42090, 48415, 51362, 58098, 77043, 96830, 128405, 145245, 154086, 256810, 290490, 385215, 590663, 770430, 1181326, 1771989, 2953315, 3543978, 5906630, 8859945, 17719890]

約数ペア:

[(1, 17719890), (2, 8859945), (3, 5906630), (5, 3543978), (6, 2953315), (10, 1771989), (15, 1181326), (23, 770430), (30, 590663), (46, 385215), (61, 290490), (69, 256810), (115, 154086), (122, 145245), (138, 128405), (183, 96830), (230, 77043), (305, 58098), (345, 51362), (366, 48415), (421, 42090), (610, 29049), (690, 25681), (842, 21045), (915, 19366), (1263, 14030), (1403, 12630), (1830, 9683), (2105, 8418), (2526, 7015), (2806, 6315), (4209, 4210)]