30781660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1301}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 80057376

約数和(自身を除く): 49275716

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1301, 1690, 1820, 2366, 2602, 3380, 4732, 5204, 5915, 6505, 9107, 11830, 13010, 16913, 18214, 23660, 26020, 33826, 36428, 45535, 67652, 84565, 91070, 118391, 169130, 182140, 219869, 236782, 338260, 439738, 473564, 591955, 879476, 1099345, 1183910, 1539083, 2198690, 2367820, 3078166, 4397380, 6156332, 7695415, 15390830, 30781660]

約数ペア:

[(1, 30781660), (2, 15390830), (4, 7695415), (5, 6156332), (7, 4397380), (10, 3078166), (13, 2367820), (14, 2198690), (20, 1539083), (26, 1183910), (28, 1099345), (35, 879476), (52, 591955), (65, 473564), (70, 439738), (91, 338260), (130, 236782), (140, 219869), (169, 182140), (182, 169130), (260, 118391), (338, 91070), (364, 84565), (455, 67652), (676, 45535), (845, 36428), (910, 33826), (1183, 26020), (1301, 23660), (1690, 18214), (1820, 16913), (2366, 13010), (2602, 11830), (3380, 9107), (4732, 6505), (5204, 5915)]