51305000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 124460160

約数和(自身を除く): 73155160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 331, 500, 620, 625, 662, 775, 1000, 1240, 1250, 1324, 1550, 1655, 2500, 2648, 3100, 3310, 3875, 5000, 6200, 6620, 7750, 8275, 10261, 13240, 15500, 16550, 19375, 20522, 31000, 33100, 38750, 41044, 41375, 51305, 66200, 77500, 82088, 82750, 102610, 155000, 165500, 205220, 206875, 256525, 331000, 410440, 413750, 513050, 827500, 1026100, 1282625, 1655000, 2052200, 2565250, 5130500, 6413125, 10261000, 12826250, 25652500, 51305000]

約数ペア:

[(1, 51305000), (2, 25652500), (4, 12826250), (5, 10261000), (8, 6413125), (10, 5130500), (20, 2565250), (25, 2052200), (31, 1655000), (40, 1282625), (50, 1026100), (62, 827500), (100, 513050), (124, 413750), (125, 410440), (155, 331000), (200, 256525), (248, 206875), (250, 205220), (310, 165500), (331, 155000), (500, 102610), (620, 82750), (625, 82088), (662, 77500), (775, 66200), (1000, 51305), (1240, 41375), (1250, 41044), (1324, 38750), (1550, 33100), (1655, 31000), (2500, 20522), (2648, 19375), (3100, 16550), (3310, 15500), (3875, 13240), (5000, 10261), (6200, 8275), (6620, 7750)]