1997187400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:480

約数の個数: 192

約数和(自身を含む): 5249664000

約数和(自身を除く): 3252476600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 71, 100, 104, 124, 130, 142, 155, 200, 248, 260, 284, 310, 325, 349, 355, 403, 520, 568, 620, 650, 698, 710, 775, 806, 923, 1240, 1300, 1396, 1420, 1550, 1612, 1745, 1775, 1846, 2015, 2201, 2600, 2792, 2840, 3100, 3224, 3490, 3550, 3692, 4030, 4402, 4537, 4615, 6200, 6980, 7100, 7384, 8060, 8725, 8804, 9074, 9230, 10075, 10819, 11005, 13960, 14200, 16120, 17450, 17608, 18148, 18460, 20150, 21638, 22010, 22685, 23075, 24779, 28613, 34900, 36296, 36920, 40300, 43276, 44020, 45370, 46150, 49558, 54095, 55025, 57226, 69800, 80600, 86552, 88040, 90740, 92300, 99116, 108190, 110050, 113425, 114452, 123895, 140647, 143065, 181480, 184600, 198232, 216380, 220100, 226850, 228904, 247790, 270475, 281294, 286130, 322127, 432760, 440200, 453700, 495580, 540950, 562588, 572260, 619475, 644254, 703235, 715325, 768149, 907400, 991160, 1081900, 1125176, 1144520, 1238950, 1288508, 1406470, 1430650, 1536298, 1610635, 2163800, 2477900, 2577016, 2812940, 2861300, 3072596, 3221270, 3516175, 3840745, 4955800, 5625880, 5722600, 6145192, 6442540, 7032350, 7681490, 8053175, 9985937, 12885080, 14064700, 15362980, 16106350, 19203725, 19971874, 28129400, 30725960, 32212700, 38407450, 39943748, 49929685, 64425400, 76814900, 79887496, 99859370, 153629800, 199718740, 249648425, 399437480, 499296850, 998593700, 1997187400]

約数ペア:

[(1, 1997187400), (2, 998593700), (4, 499296850), (5, 399437480), (8, 249648425), (10, 199718740), (13, 153629800), (20, 99859370), (25, 79887496), (26, 76814900), (31, 64425400), (40, 49929685), (50, 39943748), (52, 38407450), (62, 32212700), (65, 30725960), (71, 28129400), (100, 19971874), (104, 19203725), (124, 16106350), (130, 15362980), (142, 14064700), (155, 12885080), (200, 9985937), (248, 8053175), (260, 7681490), (284, 7032350), (310, 6442540), (325, 6145192), (349, 5722600), (355, 5625880), (403, 4955800), (520, 3840745), (568, 3516175), (620, 3221270), (650, 3072596), (698, 2861300), (710, 2812940), (775, 2577016), (806, 2477900), (923, 2163800), (1240, 1610635), (1300, 1536298), (1396, 1430650), (1420, 1406470), (1550, 1288508), (1612, 1238950), (1745, 1144520), (1775, 1125176), (1846, 1081900), (2015, 991160), (2201, 907400), (2600, 768149), (2792, 715325), (2840, 703235), (3100, 644254), (3224, 619475), (3490, 572260), (3550, 562588), (3692, 540950), (4030, 495580), (4402, 453700), (4537, 440200), (4615, 432760), (6200, 322127), (6980, 286130), (7100, 281294), (7384, 270475), (8060, 247790), (8725, 228904), (8804, 226850), (9074, 220100), (9230, 216380), (10075, 198232), (10819, 184600), (11005, 181480), (13960, 143065), (14200, 140647), (16120, 123895), (17450, 114452), (17608, 113425), (18148, 110050), (18460, 108190), (20150, 99116), (21638, 92300), (22010, 90740), (22685, 88040), (23075, 86552), (24779, 80600), (28613, 69800), (34900, 57226), (36296, 55025), (36920, 54095), (40300, 49558), (43276, 46150), (44020, 45370)]