19561620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:865

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 41402220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 809, 930, 1209, 1612, 1618, 1860, 2015, 2418, 2427, 3236, 4030, 4045, 4836, 4854, 6045, 8060, 8090, 9708, 10517, 12090, 12135, 16180, 21034, 24180, 24270, 25079, 31551, 42068, 48540, 50158, 52585, 63102, 75237, 100316, 105170, 125395, 126204, 150474, 157755, 210340, 250790, 300948, 315510, 326027, 376185, 501580, 631020, 652054, 752370, 978081, 1304108, 1504740, 1630135, 1956162, 3260270, 3912324, 4890405, 6520540, 9780810, 19561620]

約数ペア:

[(1, 19561620), (2, 9780810), (3, 6520540), (4, 4890405), (5, 3912324), (6, 3260270), (10, 1956162), (12, 1630135), (13, 1504740), (15, 1304108), (20, 978081), (26, 752370), (30, 652054), (31, 631020), (39, 501580), (52, 376185), (60, 326027), (62, 315510), (65, 300948), (78, 250790), (93, 210340), (124, 157755), (130, 150474), (155, 126204), (156, 125395), (186, 105170), (195, 100316), (260, 75237), (310, 63102), (372, 52585), (390, 50158), (403, 48540), (465, 42068), (620, 31551), (780, 25079), (806, 24270), (809, 24180), (930, 21034), (1209, 16180), (1612, 12135), (1618, 12090), (1860, 10517), (2015, 9708), (2418, 8090), (2427, 8060), (3236, 6045), (4030, 4854), (4045, 4836)]