20389298175

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1553}}^1$

素因数の和:1694

約数の個数: 144

約数和(自身を含む): 39679960320

約数和(自身を除く): 19290662145

約数列:

[1, 3, 5, 9, 15, 23, 25, 43, 45, 59, 69, 75, 115, 129, 177, 207, 215, 225, 295, 345, 387, 531, 575, 645, 885, 989, 1035, 1075, 1357, 1475, 1553, 1725, 1935, 2537, 2655, 2967, 3225, 4071, 4425, 4659, 4945, 5175, 6785, 7611, 7765, 8901, 9675, 12213, 12685, 13275, 13977, 14835, 20355, 22833, 23295, 24725, 33925, 35719, 38055, 38825, 44505, 58351, 61065, 63425, 66779, 69885, 74175, 91627, 101775, 107157, 114165, 116475, 175053, 178595, 190275, 200337, 222525, 274881, 291755, 305325, 321471, 333895, 349425, 458135, 525159, 535785, 570825, 601011, 824643, 875265, 892975, 1001685, 1374405, 1458775, 1535917, 1607355, 1669475, 2107421, 2290675, 2625795, 2678925, 3005055, 3939961, 4123215, 4376325, 4607751, 5008425, 6322263, 6872025, 7679585, 8036775, 10537105, 11819883, 13128975, 13823253, 15025275, 18966789, 19699805, 20616075, 23038755, 31611315, 35459649, 38397925, 52685525, 59099415, 69116265, 90619103, 94833945, 98499025, 115193775, 158056575, 177298245, 271857309, 295497075, 345581325, 453095515, 474169725, 815571927, 886491225, 1359286545, 2265477575, 4077859635, 6796432725, 20389298175]

約数ペア:

[(1, 20389298175), (3, 6796432725), (5, 4077859635), (9, 2265477575), (15, 1359286545), (23, 886491225), (25, 815571927), (43, 474169725), (45, 453095515), (59, 345581325), (69, 295497075), (75, 271857309), (115, 177298245), (129, 158056575), (177, 115193775), (207, 98499025), (215, 94833945), (225, 90619103), (295, 69116265), (345, 59099415), (387, 52685525), (531, 38397925), (575, 35459649), (645, 31611315), (885, 23038755), (989, 20616075), (1035, 19699805), (1075, 18966789), (1357, 15025275), (1475, 13823253), (1553, 13128975), (1725, 11819883), (1935, 10537105), (2537, 8036775), (2655, 7679585), (2967, 6872025), (3225, 6322263), (4071, 5008425), (4425, 4607751), (4659, 4376325), (4945, 4123215), (5175, 3939961), (6785, 3005055), (7611, 2678925), (7765, 2625795), (8901, 2290675), (9675, 2107421), (12213, 1669475), (12685, 1607355), (13275, 1535917), (13977, 1458775), (14835, 1374405), (20355, 1001685), (22833, 892975), (23295, 875265), (24725, 824643), (33925, 601011), (35719, 570825), (38055, 535785), (38825, 525159), (44505, 458135), (58351, 349425), (61065, 333895), (63425, 321471), (66779, 305325), (69885, 291755), (74175, 274881), (91627, 222525), (101775, 200337), (107157, 190275), (114165, 178595), (116475, 175053)]