18888941720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{751}}^1\times {\mathrm{57163}}^1$

素因数の和:57936

約数の個数: 64

約数和(自身を含む): 46426314240

約数和(自身を除く): 27537372520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 751, 1502, 3004, 3755, 6008, 7510, 8261, 15020, 16522, 30040, 33044, 41305, 57163, 66088, 82610, 114326, 165220, 228652, 285815, 330440, 457304, 571630, 628793, 1143260, 1257586, 2286520, 2515172, 3143965, 5030344, 6287930, 12575860, 25151720, 42929413, 85858826, 171717652, 214647065, 343435304, 429294130, 472223543, 858588260, 944447086, 1717176520, 1888894172, 2361117715, 3777788344, 4722235430, 9444470860, 18888941720]

約数ペア:

[(1, 18888941720), (2, 9444470860), (4, 4722235430), (5, 3777788344), (8, 2361117715), (10, 1888894172), (11, 1717176520), (20, 944447086), (22, 858588260), (40, 472223543), (44, 429294130), (55, 343435304), (88, 214647065), (110, 171717652), (220, 85858826), (440, 42929413), (751, 25151720), (1502, 12575860), (3004, 6287930), (3755, 5030344), (6008, 3143965), (7510, 2515172), (8261, 2286520), (15020, 1257586), (16522, 1143260), (30040, 628793), (33044, 571630), (41305, 457304), (57163, 330440), (66088, 285815), (82610, 228652), (114326, 165220)]