20016576240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{251971}}^1$

素因数の和:252318

約数の個数: 80

約数和(自身を含む): 62239099776

約数和(自身を除く): 42222523536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 331, 662, 993, 1324, 1655, 1986, 2648, 3310, 3972, 4965, 5296, 6620, 7944, 9930, 13240, 15888, 19860, 26480, 39720, 79440, 251971, 503942, 755913, 1007884, 1259855, 1511826, 2015768, 2519710, 3023652, 3779565, 4031536, 5039420, 6047304, 7559130, 10078840, 12094608, 15118260, 20157680, 30236520, 60473040, 83402401, 166804802, 250207203, 333609604, 417012005, 500414406, 667219208, 834024010, 1000828812, 1251036015, 1334438416, 1668048020, 2001657624, 2502072030, 3336096040, 4003315248, 5004144060, 6672192080, 10008288120, 20016576240]

約数ペア:

[(1, 20016576240), (2, 10008288120), (3, 6672192080), (4, 5004144060), (5, 4003315248), (6, 3336096040), (8, 2502072030), (10, 2001657624), (12, 1668048020), (15, 1334438416), (16, 1251036015), (20, 1000828812), (24, 834024010), (30, 667219208), (40, 500414406), (48, 417012005), (60, 333609604), (80, 250207203), (120, 166804802), (240, 83402401), (331, 60473040), (662, 30236520), (993, 20157680), (1324, 15118260), (1655, 12094608), (1986, 10078840), (2648, 7559130), (3310, 6047304), (3972, 5039420), (4965, 4031536), (5296, 3779565), (6620, 3023652), (7944, 2519710), (9930, 2015768), (13240, 1511826), (15888, 1259855), (19860, 1007884), (26480, 755913), (39720, 503942), (79440, 251971)]