16444880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 41664000

約数和(自身を除く): 25219120

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, 349, 380, 496, 589, 620, 698, 760, 1178, 1240, 1396, 1520, 1745, 2356, 2480, 2792, 2945, 3490, 4712, 5584, 5890, 6631, 6980, 9424, 10819, 11780, 13262, 13960, 21638, 23560, 26524, 27920, 33155, 43276, 47120, 53048, 54095, 66310, 86552, 106096, 108190, 132620, 173104, 205561, 216380, 265240, 411122, 432760, 530480, 822244, 865520, 1027805, 1644488, 2055610, 3288976, 4111220, 8222440, 16444880]

約数ペア:

[(1, 16444880), (2, 8222440), (4, 4111220), (5, 3288976), (8, 2055610), (10, 1644488), (16, 1027805), (19, 865520), (20, 822244), (31, 530480), (38, 432760), (40, 411122), (62, 265240), (76, 216380), (80, 205561), (95, 173104), (124, 132620), (152, 108190), (155, 106096), (190, 86552), (248, 66310), (304, 54095), (310, 53048), (349, 47120), (380, 43276), (496, 33155), (589, 27920), (620, 26524), (698, 23560), (760, 21638), (1178, 13960), (1240, 13262), (1396, 11780), (1520, 10819), (1745, 9424), (2356, 6980), (2480, 6631), (2792, 5890), (2945, 5584), (3490, 4712)]