20796664460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{3461}}^1$

素因数の和:3696

約数の個数: 144

約数和(自身を含む): 51982511616

約数和(自身を除く): 31185847156

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 191, 220, 242, 260, 286, 382, 484, 572, 605, 715, 764, 955, 1210, 1430, 1573, 1910, 2101, 2420, 2483, 2860, 3146, 3461, 3820, 4202, 4966, 6292, 6922, 7865, 8404, 9932, 10505, 12415, 13844, 15730, 17305, 21010, 23111, 24830, 27313, 31460, 34610, 38071, 42020, 44993, 46222, 49660, 54626, 69220, 76142, 89986, 92444, 109252, 115555, 136565, 152284, 179972, 190355, 224965, 231110, 273130, 300443, 380710, 418781, 449930, 462220, 494923, 546260, 600886, 661051, 761420, 837562, 899860, 989846, 1201772, 1322102, 1502215, 1675124, 1979692, 2093905, 2474615, 2644204, 3004430, 3305255, 4187810, 4949230, 5444153, 6008860, 6610510, 7271561, 8375620, 8593663, 9898460, 10888306, 13221020, 14543122, 17187326, 21776612, 27220765, 29086244, 34374652, 36357805, 42968315, 54441530, 72715610, 79987171, 85936630, 94530293, 108883060, 145431220, 159974342, 171873260, 189060586, 319948684, 378121172, 399935855, 472651465, 799871710, 945302930, 1039833223, 1599743420, 1890605860, 2079666446, 4159332892, 5199166115, 10398332230, 20796664460]

約数ペア:

[(1, 20796664460), (2, 10398332230), (4, 5199166115), (5, 4159332892), (10, 2079666446), (11, 1890605860), (13, 1599743420), (20, 1039833223), (22, 945302930), (26, 799871710), (44, 472651465), (52, 399935855), (55, 378121172), (65, 319948684), (110, 189060586), (121, 171873260), (130, 159974342), (143, 145431220), (191, 108883060), (220, 94530293), (242, 85936630), (260, 79987171), (286, 72715610), (382, 54441530), (484, 42968315), (572, 36357805), (605, 34374652), (715, 29086244), (764, 27220765), (955, 21776612), (1210, 17187326), (1430, 14543122), (1573, 13221020), (1910, 10888306), (2101, 9898460), (2420, 8593663), (2483, 8375620), (2860, 7271561), (3146, 6610510), (3461, 6008860), (3820, 5444153), (4202, 4949230), (4966, 4187810), (6292, 3305255), (6922, 3004430), (7865, 2644204), (8404, 2474615), (9932, 2093905), (10505, 1979692), (12415, 1675124), (13844, 1502215), (15730, 1322102), (17305, 1201772), (21010, 989846), (23111, 899860), (24830, 837562), (27313, 761420), (31460, 661051), (34610, 600886), (38071, 546260), (42020, 494923), (44993, 462220), (46222, 449930), (49660, 418781), (54626, 380710), (69220, 300443), (76142, 273130), (89986, 231110), (92444, 224965), (109252, 190355), (115555, 179972), (136565, 152284)]