19992210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 58834944

約数和(自身を除く): 38842734

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 37, 42, 62, 70, 74, 83, 93, 105, 111, 155, 166, 185, 186, 210, 217, 222, 249, 259, 310, 370, 415, 434, 465, 498, 518, 555, 581, 651, 777, 830, 930, 1085, 1110, 1147, 1162, 1245, 1295, 1302, 1554, 1743, 2170, 2294, 2490, 2573, 2590, 2905, 3071, 3255, 3441, 3486, 3885, 5146, 5735, 5810, 6142, 6510, 6882, 7719, 7770, 8029, 8715, 9213, 11470, 12865, 15355, 15438, 16058, 17205, 17430, 18011, 18426, 21497, 24087, 25730, 30710, 34410, 36022, 38595, 40145, 42994, 46065, 48174, 54033, 64491, 77190, 80290, 90055, 92130, 95201, 107485, 108066, 120435, 128982, 180110, 190402, 214970, 240870, 270165, 285603, 322455, 476005, 540330, 571206, 644910, 666407, 952010, 1332814, 1428015, 1999221, 2856030, 3332035, 3998442, 6664070, 9996105, 19992210]

約数ペア:

[(1, 19992210), (2, 9996105), (3, 6664070), (5, 3998442), (6, 3332035), (7, 2856030), (10, 1999221), (14, 1428015), (15, 1332814), (21, 952010), (30, 666407), (31, 644910), (35, 571206), (37, 540330), (42, 476005), (62, 322455), (70, 285603), (74, 270165), (83, 240870), (93, 214970), (105, 190402), (111, 180110), (155, 128982), (166, 120435), (185, 108066), (186, 107485), (210, 95201), (217, 92130), (222, 90055), (249, 80290), (259, 77190), (310, 64491), (370, 54033), (415, 48174), (434, 46065), (465, 42994), (498, 40145), (518, 38595), (555, 36022), (581, 34410), (651, 30710), (777, 25730), (830, 24087), (930, 21497), (1085, 18426), (1110, 18011), (1147, 17430), (1162, 17205), (1245, 16058), (1295, 15438), (1302, 15355), (1554, 12865), (1743, 11470), (2170, 9213), (2294, 8715), (2490, 8029), (2573, 7770), (2590, 7719), (2905, 6882), (3071, 6510), (3255, 6142), (3441, 5810), (3486, 5735), (3885, 5146)]