258526380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{615539}}^1$

素因数の和:615558

約数の個数: 48

約数和(自身を含む): 827285760

約数和(自身を除く): 568759380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 615539, 1231078, 1846617, 2462156, 3077695, 3693234, 4308773, 6155390, 7386468, 8617546, 9233085, 12310780, 12926319, 17235092, 18466170, 21543865, 25852638, 36932340, 43087730, 51705276, 64631595, 86175460, 129263190, 258526380]

約数ペア:

[(1, 258526380), (2, 129263190), (3, 86175460), (4, 64631595), (5, 51705276), (6, 43087730), (7, 36932340), (10, 25852638), (12, 21543865), (14, 18466170), (15, 17235092), (20, 12926319), (21, 12310780), (28, 9233085), (30, 8617546), (35, 7386468), (42, 6155390), (60, 4308773), (70, 3693234), (84, 3077695), (105, 2462156), (140, 1846617), (210, 1231078), (420, 615539)]