7961720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 19686240

約数和(自身を除く): 11724520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 251, 260, 305, 488, 502, 520, 610, 793, 1004, 1220, 1255, 1586, 2008, 2440, 2510, 3172, 3263, 3965, 5020, 6344, 6526, 7930, 10040, 13052, 15311, 15860, 16315, 26104, 30622, 31720, 32630, 61244, 65260, 76555, 122488, 130520, 153110, 199043, 306220, 398086, 612440, 796172, 995215, 1592344, 1990430, 3980860, 7961720]

約数ペア:

[(1, 7961720), (2, 3980860), (4, 1990430), (5, 1592344), (8, 995215), (10, 796172), (13, 612440), (20, 398086), (26, 306220), (40, 199043), (52, 153110), (61, 130520), (65, 122488), (104, 76555), (122, 65260), (130, 61244), (244, 32630), (251, 31720), (260, 30622), (305, 26104), (488, 16315), (502, 15860), (520, 15311), (610, 13052), (793, 10040), (1004, 7930), (1220, 6526), (1255, 6344), (1586, 5020), (2008, 3965), (2440, 3263), (2510, 3172)]