220920980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 587153280

約数和(自身を除く): 366232300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 70, 76, 92, 95, 115, 133, 140, 157, 161, 190, 230, 266, 314, 322, 380, 437, 460, 529, 532, 628, 644, 665, 785, 805, 874, 1058, 1099, 1330, 1570, 1610, 1748, 2116, 2185, 2198, 2645, 2660, 2983, 3059, 3140, 3220, 3611, 3703, 4370, 4396, 5290, 5495, 5966, 6118, 7222, 7406, 8740, 10051, 10580, 10990, 11932, 12236, 14444, 14812, 14915, 15295, 18055, 18515, 20102, 20881, 21980, 25277, 29830, 30590, 36110, 37030, 40204, 41762, 50255, 50554, 59660, 61180, 68609, 70357, 72220, 74060, 83053, 83524, 100510, 101108, 104405, 126385, 137218, 140714, 166106, 201020, 208810, 252770, 274436, 281428, 332212, 343045, 351785, 415265, 417620, 480263, 505540, 581371, 686090, 703570, 830530, 960526, 1162742, 1372180, 1407140, 1578007, 1661060, 1921052, 2325484, 2401315, 2906855, 3156014, 4802630, 5813710, 6312028, 7890035, 9605260, 11046049, 11627420, 15780070, 22092098, 31560140, 44184196, 55230245, 110460490, 220920980]

約数ペア:

[(1, 220920980), (2, 110460490), (4, 55230245), (5, 44184196), (7, 31560140), (10, 22092098), (14, 15780070), (19, 11627420), (20, 11046049), (23, 9605260), (28, 7890035), (35, 6312028), (38, 5813710), (46, 4802630), (70, 3156014), (76, 2906855), (92, 2401315), (95, 2325484), (115, 1921052), (133, 1661060), (140, 1578007), (157, 1407140), (161, 1372180), (190, 1162742), (230, 960526), (266, 830530), (314, 703570), (322, 686090), (380, 581371), (437, 505540), (460, 480263), (529, 417620), (532, 415265), (628, 351785), (644, 343045), (665, 332212), (785, 281428), (805, 274436), (874, 252770), (1058, 208810), (1099, 201020), (1330, 166106), (1570, 140714), (1610, 137218), (1748, 126385), (2116, 104405), (2185, 101108), (2198, 100510), (2645, 83524), (2660, 83053), (2983, 74060), (3059, 72220), (3140, 70357), (3220, 68609), (3611, 61180), (3703, 59660), (4370, 50554), (4396, 50255), (5290, 41762), (5495, 40204), (5966, 37030), (6118, 36110), (7222, 30590), (7406, 29830), (8740, 25277), (10051, 21980), (10580, 20881), (10990, 20102), (11932, 18515), (12236, 18055), (14444, 15295), (14812, 14915)]