61919340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21061}}^1$

素因数の和:21087

約数の個数: 72

約数和(自身を含む): 201689712

約数和(自身を除く): 139770372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21061, 42122, 63183, 84244, 105305, 126366, 147427, 210610, 252732, 294854, 315915, 421220, 442281, 589708, 631830, 737135, 884562, 1031989, 1263660, 1474270, 1769124, 2063978, 2211405, 2948540, 3095967, 4127956, 4422810, 5159945, 6191934, 8845620, 10319890, 12383868, 15479835, 20639780, 30959670, 61919340]

約数ペア:

[(1, 61919340), (2, 30959670), (3, 20639780), (4, 15479835), (5, 12383868), (6, 10319890), (7, 8845620), (10, 6191934), (12, 5159945), (14, 4422810), (15, 4127956), (20, 3095967), (21, 2948540), (28, 2211405), (30, 2063978), (35, 1769124), (42, 1474270), (49, 1263660), (60, 1031989), (70, 884562), (84, 737135), (98, 631830), (105, 589708), (140, 442281), (147, 421220), (196, 315915), (210, 294854), (245, 252732), (294, 210610), (420, 147427), (490, 126366), (588, 105305), (735, 84244), (980, 63183), (1470, 42122), (2940, 21061)]