388601720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12251}}^1$

素因数の和:12336

約数の個数: 64

約数和(自身を含む): 957126240

約数和(自身を除く): 568524520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 7930, 12251, 15860, 24502, 31720, 49004, 61255, 98008, 122510, 159263, 245020, 318526, 490040, 637052, 747311, 796315, 1274104, 1494622, 1592630, 2989244, 3185260, 3736555, 5978488, 6370520, 7473110, 9715043, 14946220, 19430086, 29892440, 38860172, 48575215, 77720344, 97150430, 194300860, 388601720]

約数ペア:

[(1, 388601720), (2, 194300860), (4, 97150430), (5, 77720344), (8, 48575215), (10, 38860172), (13, 29892440), (20, 19430086), (26, 14946220), (40, 9715043), (52, 7473110), (61, 6370520), (65, 5978488), (104, 3736555), (122, 3185260), (130, 2989244), (244, 1592630), (260, 1494622), (305, 1274104), (488, 796315), (520, 747311), (610, 637052), (793, 490040), (1220, 318526), (1586, 245020), (2440, 159263), (3172, 122510), (3965, 98008), (6344, 61255), (7930, 49004), (12251, 31720), (15860, 24502)]