809945680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17189}}^1$

素因数の和:17252

約数の個数: 80

約数和(自身を含む): 2046297600

約数和(自身を除く): 1236351920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5890, 9424, 11780, 17189, 23560, 34378, 47120, 68756, 85945, 137512, 171890, 275024, 326591, 343780, 532859, 653182, 687560, 1065718, 1306364, 1375120, 1632955, 2131436, 2612728, 2664295, 3265910, 4262872, 5225456, 5328590, 6531820, 8525744, 10124321, 10657180, 13063640, 20248642, 21314360, 26127280, 40497284, 42628720, 50621605, 80994568, 101243210, 161989136, 202486420, 404972840, 809945680]

約数ペア:

[(1, 809945680), (2, 404972840), (4, 202486420), (5, 161989136), (8, 101243210), (10, 80994568), (16, 50621605), (19, 42628720), (20, 40497284), (31, 26127280), (38, 21314360), (40, 20248642), (62, 13063640), (76, 10657180), (80, 10124321), (95, 8525744), (124, 6531820), (152, 5328590), (155, 5225456), (190, 4262872), (248, 3265910), (304, 2664295), (310, 2612728), (380, 2131436), (496, 1632955), (589, 1375120), (620, 1306364), (760, 1065718), (1178, 687560), (1240, 653182), (1520, 532859), (2356, 343780), (2480, 326591), (2945, 275024), (4712, 171890), (5890, 137512), (9424, 85945), (11780, 68756), (17189, 47120), (23560, 34378)]