42259980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:679

約数の個数: 96

約数和(自身を含む): 136120320

約数和(自身を除く): 93860340

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, 239, 420, 421, 478, 717, 842, 956, 1195, 1263, 1434, 1673, 1684, 2105, 2390, 2526, 2868, 2947, 3346, 3585, 4210, 4780, 5019, 5052, 5894, 6315, 6692, 7170, 8365, 8420, 8841, 10038, 11788, 12630, 14340, 14735, 16730, 17682, 20076, 25095, 25260, 29470, 33460, 35364, 44205, 50190, 58940, 88410, 100380, 100619, 176820, 201238, 301857, 402476, 503095, 603714, 704333, 1006190, 1207428, 1408666, 1509285, 2012380, 2112999, 2817332, 3018570, 3521665, 4225998, 6037140, 7043330, 8451996, 10564995, 14086660, 21129990, 42259980]

約数ペア:

[(1, 42259980), (2, 21129990), (3, 14086660), (4, 10564995), (5, 8451996), (6, 7043330), (7, 6037140), (10, 4225998), (12, 3521665), (14, 3018570), (15, 2817332), (20, 2112999), (21, 2012380), (28, 1509285), (30, 1408666), (35, 1207428), (42, 1006190), (60, 704333), (70, 603714), (84, 503095), (105, 402476), (140, 301857), (210, 201238), (239, 176820), (420, 100619), (421, 100380), (478, 88410), (717, 58940), (842, 50190), (956, 44205), (1195, 35364), (1263, 33460), (1434, 29470), (1673, 25260), (1684, 25095), (2105, 20076), (2390, 17682), (2526, 16730), (2868, 14735), (2947, 14340), (3346, 12630), (3585, 11788), (4210, 10038), (4780, 8841), (5019, 8420), (5052, 8365), (5894, 7170), (6315, 6692)]