31283820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 101451168

約数和(自身を除く): 70167348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 123, 135, 157, 162, 164, 180, 205, 243, 246, 270, 314, 324, 369, 405, 410, 471, 486, 492, 540, 615, 628, 738, 785, 810, 820, 942, 972, 1107, 1215, 1230, 1413, 1476, 1570, 1620, 1845, 1884, 2214, 2355, 2430, 2460, 2826, 3140, 3321, 3690, 4239, 4428, 4710, 4860, 5535, 5652, 6437, 6642, 7065, 7380, 8478, 9420, 9963, 11070, 12717, 12874, 13284, 14130, 16605, 16956, 19311, 19926, 21195, 22140, 25434, 25748, 28260, 32185, 33210, 38151, 38622, 39852, 42390, 49815, 50868, 57933, 63585, 64370, 66420, 76302, 77244, 84780, 96555, 99630, 115866, 127170, 128740, 152604, 173799, 190755, 193110, 199260, 231732, 254340, 289665, 347598, 381510, 386220, 521397, 579330, 695196, 763020, 868995, 1042794, 1158660, 1564191, 1737990, 2085588, 2606985, 3128382, 3475980, 5213970, 6256764, 7820955, 10427940, 15641910, 31283820]

約数ペア:

[(1, 31283820), (2, 15641910), (3, 10427940), (4, 7820955), (5, 6256764), (6, 5213970), (9, 3475980), (10, 3128382), (12, 2606985), (15, 2085588), (18, 1737990), (20, 1564191), (27, 1158660), (30, 1042794), (36, 868995), (41, 763020), (45, 695196), (54, 579330), (60, 521397), (81, 386220), (82, 381510), (90, 347598), (108, 289665), (123, 254340), (135, 231732), (157, 199260), (162, 193110), (164, 190755), (180, 173799), (205, 152604), (243, 128740), (246, 127170), (270, 115866), (314, 99630), (324, 96555), (369, 84780), (405, 77244), (410, 76302), (471, 66420), (486, 64370), (492, 63585), (540, 57933), (615, 50868), (628, 49815), (738, 42390), (785, 39852), (810, 38622), (820, 38151), (942, 33210), (972, 32185), (1107, 28260), (1215, 25748), (1230, 25434), (1413, 22140), (1476, 21195), (1570, 19926), (1620, 19311), (1845, 16956), (1884, 16605), (2214, 14130), (2355, 13284), (2430, 12874), (2460, 12717), (2826, 11070), (3140, 9963), (3321, 9420), (3690, 8478), (4239, 7380), (4428, 7065), (4710, 6642), (4860, 6437), (5535, 5652)]