20937072

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 61268400

約数和(自身を除く): 40331328

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 89, 104, 116, 156, 169, 174, 178, 208, 232, 267, 312, 338, 348, 356, 377, 464, 507, 534, 624, 676, 696, 712, 754, 1014, 1068, 1131, 1157, 1352, 1392, 1424, 1508, 2028, 2136, 2262, 2314, 2581, 2704, 3016, 3471, 4056, 4272, 4524, 4628, 4901, 5162, 6032, 6942, 7743, 8112, 9048, 9256, 9802, 10324, 13884, 14703, 15041, 15486, 18096, 18512, 19604, 20648, 27768, 29406, 30082, 30972, 33553, 39208, 41296, 45123, 55536, 58812, 60164, 61944, 67106, 78416, 90246, 100659, 117624, 120328, 123888, 134212, 180492, 201318, 235248, 240656, 268424, 360984, 402636, 436189, 536848, 721968, 805272, 872378, 1308567, 1610544, 1744756, 2617134, 3489512, 5234268, 6979024, 10468536, 20937072]

約数ペア:

[(1, 20937072), (2, 10468536), (3, 6979024), (4, 5234268), (6, 3489512), (8, 2617134), (12, 1744756), (13, 1610544), (16, 1308567), (24, 872378), (26, 805272), (29, 721968), (39, 536848), (48, 436189), (52, 402636), (58, 360984), (78, 268424), (87, 240656), (89, 235248), (104, 201318), (116, 180492), (156, 134212), (169, 123888), (174, 120328), (178, 117624), (208, 100659), (232, 90246), (267, 78416), (312, 67106), (338, 61944), (348, 60164), (356, 58812), (377, 55536), (464, 45123), (507, 41296), (534, 39208), (624, 33553), (676, 30972), (696, 30082), (712, 29406), (754, 27768), (1014, 20648), (1068, 19604), (1131, 18512), (1157, 18096), (1352, 15486), (1392, 15041), (1424, 14703), (1508, 13884), (2028, 10324), (2136, 9802), (2262, 9256), (2314, 9048), (2581, 8112), (2704, 7743), (3016, 6942), (3471, 6032), (4056, 5162), (4272, 4901), (4524, 4628)]