8222440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 20160000

約数和(自身を除く): 11937560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 349, 380, 589, 620, 698, 760, 1178, 1240, 1396, 1745, 2356, 2792, 2945, 3490, 4712, 5890, 6631, 6980, 10819, 11780, 13262, 13960, 21638, 23560, 26524, 33155, 43276, 53048, 54095, 66310, 86552, 108190, 132620, 205561, 216380, 265240, 411122, 432760, 822244, 1027805, 1644488, 2055610, 4111220, 8222440]

約数ペア:

[(1, 8222440), (2, 4111220), (4, 2055610), (5, 1644488), (8, 1027805), (10, 822244), (19, 432760), (20, 411122), (31, 265240), (38, 216380), (40, 205561), (62, 132620), (76, 108190), (95, 86552), (124, 66310), (152, 54095), (155, 53048), (190, 43276), (248, 33155), (310, 26524), (349, 23560), (380, 21638), (589, 13960), (620, 13262), (698, 11780), (760, 10819), (1178, 6980), (1240, 6631), (1396, 5890), (1745, 4712), (2356, 3490), (2792, 2945)]