640775400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{787}}^1$

素因数の和:888

約数の個数: 192

約数和(自身を含む): 2110579200

約数和(自身を除く): 1469803800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 25, 30, 40, 46, 50, 59, 60, 69, 75, 92, 100, 115, 118, 120, 138, 150, 177, 184, 200, 230, 236, 276, 295, 300, 345, 354, 460, 472, 552, 575, 590, 600, 690, 708, 787, 885, 920, 1150, 1180, 1357, 1380, 1416, 1475, 1574, 1725, 1770, 2300, 2360, 2361, 2714, 2760, 2950, 3148, 3450, 3540, 3935, 4071, 4425, 4600, 4722, 5428, 5900, 6296, 6785, 6900, 7080, 7870, 8142, 8850, 9444, 10856, 11800, 11805, 13570, 13800, 15740, 16284, 17700, 18101, 18888, 19675, 20355, 23610, 27140, 31480, 32568, 33925, 35400, 36202, 39350, 40710, 46433, 47220, 54280, 54303, 59025, 67850, 72404, 78700, 81420, 90505, 92866, 94440, 101775, 108606, 118050, 135700, 139299, 144808, 157400, 162840, 181010, 185732, 203550, 217212, 232165, 236100, 271400, 271515, 278598, 362020, 371464, 407100, 434424, 452525, 464330, 472200, 543030, 557196, 696495, 724040, 814200, 905050, 928660, 1067959, 1086060, 1114392, 1160825, 1357575, 1392990, 1810100, 1857320, 2135918, 2172120, 2321650, 2715150, 2785980, 3203877, 3482475, 3620200, 4271836, 4643300, 5339795, 5430300, 5571960, 6407754, 6964950, 8543672, 9286600, 10679590, 10860600, 12815508, 13929900, 16019385, 21359180, 25631016, 26698975, 27859800, 32038770, 42718360, 53397950, 64077540, 80096925, 106795900, 128155080, 160193850, 213591800, 320387700, 640775400]

約数ペア:

[(1, 640775400), (2, 320387700), (3, 213591800), (4, 160193850), (5, 128155080), (6, 106795900), (8, 80096925), (10, 64077540), (12, 53397950), (15, 42718360), (20, 32038770), (23, 27859800), (24, 26698975), (25, 25631016), (30, 21359180), (40, 16019385), (46, 13929900), (50, 12815508), (59, 10860600), (60, 10679590), (69, 9286600), (75, 8543672), (92, 6964950), (100, 6407754), (115, 5571960), (118, 5430300), (120, 5339795), (138, 4643300), (150, 4271836), (177, 3620200), (184, 3482475), (200, 3203877), (230, 2785980), (236, 2715150), (276, 2321650), (295, 2172120), (300, 2135918), (345, 1857320), (354, 1810100), (460, 1392990), (472, 1357575), (552, 1160825), (575, 1114392), (590, 1086060), (600, 1067959), (690, 928660), (708, 905050), (787, 814200), (885, 724040), (920, 696495), (1150, 557196), (1180, 543030), (1357, 472200), (1380, 464330), (1416, 452525), (1475, 434424), (1574, 407100), (1725, 371464), (1770, 362020), (2300, 278598), (2360, 271515), (2361, 271400), (2714, 236100), (2760, 232165), (2950, 217212), (3148, 203550), (3450, 185732), (3540, 181010), (3935, 162840), (4071, 157400), (4425, 144808), (4600, 139299), (4722, 135700), (5428, 118050), (5900, 108606), (6296, 101775), (6785, 94440), (6900, 92866), (7080, 90505), (7870, 81420), (8142, 78700), (8850, 72404), (9444, 67850), (10856, 59025), (11800, 54303), (11805, 54280), (13570, 47220), (13800, 46433), (15740, 40710), (16284, 39350), (17700, 36202), (18101, 35400), (18888, 33925), (19675, 32568), (20355, 31480), (23610, 27140)]