19138420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 47688480

約数和(自身を除く): 28550060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 331, 413, 490, 590, 662, 826, 980, 1180, 1324, 1652, 1655, 2065, 2317, 2891, 3310, 4130, 4634, 5782, 6620, 8260, 9268, 11564, 11585, 14455, 16219, 19529, 23170, 28910, 32438, 39058, 46340, 57820, 64876, 78116, 81095, 97645, 136703, 162190, 195290, 273406, 324380, 390580, 546812, 683515, 956921, 1367030, 1913842, 2734060, 3827684, 4784605, 9569210, 19138420]

約数ペア:

[(1, 19138420), (2, 9569210), (4, 4784605), (5, 3827684), (7, 2734060), (10, 1913842), (14, 1367030), (20, 956921), (28, 683515), (35, 546812), (49, 390580), (59, 324380), (70, 273406), (98, 195290), (118, 162190), (140, 136703), (196, 97645), (236, 81095), (245, 78116), (295, 64876), (331, 57820), (413, 46340), (490, 39058), (590, 32438), (662, 28910), (826, 23170), (980, 19529), (1180, 16219), (1324, 14455), (1652, 11585), (1655, 11564), (2065, 9268), (2317, 8260), (2891, 6620), (3310, 5782), (4130, 4634)]