20440938045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:667

約数の個数: 128

約数和(自身を含む): 37617592320

約数和(自身を除く): 17176654275

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 61, 111, 131, 165, 183, 185, 305, 393, 407, 419, 555, 655, 671, 915, 1221, 1257, 1441, 1965, 2013, 2035, 2095, 2257, 3355, 4323, 4609, 4847, 6105, 6285, 6771, 7205, 7991, 10065, 11285, 13827, 14541, 15503, 21615, 23045, 23973, 24235, 24827, 25559, 33855, 39955, 46509, 53317, 54889, 69135, 72705, 74481, 76677, 77515, 87901, 119865, 124135, 127795, 159951, 164667, 170533, 232545, 263703, 266585, 274445, 281149, 295667, 372405, 383385, 439505, 511599, 603779, 799755, 823335, 843447, 852665, 887001, 945683, 1318515, 1405745, 1478335, 1811337, 2030893, 2557995, 2837049, 3018895, 3252337, 3348229, 4217235, 4435005, 4728415, 6092679, 9056685, 9757011, 10044687, 10154465, 10402513, 14185245, 16261685, 16741145, 22339823, 30463395, 31207539, 36830519, 48785055, 50223435, 52012565, 67019469, 110491557, 111699115, 123884473, 156037695, 184152595, 335097345, 371653419, 552457785, 619422365, 1362729203, 1858267095, 4088187609, 6813646015, 20440938045]

約数ペア:

[(1, 20440938045), (3, 6813646015), (5, 4088187609), (11, 1858267095), (15, 1362729203), (33, 619422365), (37, 552457785), (55, 371653419), (61, 335097345), (111, 184152595), (131, 156037695), (165, 123884473), (183, 111699115), (185, 110491557), (305, 67019469), (393, 52012565), (407, 50223435), (419, 48785055), (555, 36830519), (655, 31207539), (671, 30463395), (915, 22339823), (1221, 16741145), (1257, 16261685), (1441, 14185245), (1965, 10402513), (2013, 10154465), (2035, 10044687), (2095, 9757011), (2257, 9056685), (3355, 6092679), (4323, 4728415), (4609, 4435005), (4847, 4217235), (6105, 3348229), (6285, 3252337), (6771, 3018895), (7205, 2837049), (7991, 2557995), (10065, 2030893), (11285, 1811337), (13827, 1478335), (14541, 1405745), (15503, 1318515), (21615, 945683), (23045, 887001), (23973, 852665), (24235, 843447), (24827, 823335), (25559, 799755), (33855, 603779), (39955, 511599), (46509, 439505), (53317, 383385), (54889, 372405), (69135, 295667), (72705, 281149), (74481, 274445), (76677, 266585), (77515, 263703), (87901, 232545), (119865, 170533), (124135, 164667), (127795, 159951)]