20738760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3527}}^1$

素因数の和:3555

約数の個数: 96

約数和(自身を含む): 72394560

約数和(自身を除く): 51655800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3527, 5880, 7054, 10581, 14108, 17635, 21162, 24689, 28216, 35270, 42324, 49378, 52905, 70540, 74067, 84648, 98756, 105810, 123445, 141080, 148134, 172823, 197512, 211620, 246890, 296268, 345646, 370335, 423240, 493780, 518469, 592536, 691292, 740670, 864115, 987560, 1036938, 1382584, 1481340, 1728230, 2073876, 2592345, 2962680, 3456460, 4147752, 5184690, 6912920, 10369380, 20738760]

約数ペア:

[(1, 20738760), (2, 10369380), (3, 6912920), (4, 5184690), (5, 4147752), (6, 3456460), (7, 2962680), (8, 2592345), (10, 2073876), (12, 1728230), (14, 1481340), (15, 1382584), (20, 1036938), (21, 987560), (24, 864115), (28, 740670), (30, 691292), (35, 592536), (40, 518469), (42, 493780), (49, 423240), (56, 370335), (60, 345646), (70, 296268), (84, 246890), (98, 211620), (105, 197512), (120, 172823), (140, 148134), (147, 141080), (168, 123445), (196, 105810), (210, 98756), (245, 84648), (280, 74067), (294, 70540), (392, 52905), (420, 49378), (490, 42324), (588, 35270), (735, 28216), (840, 24689), (980, 21162), (1176, 17635), (1470, 14108), (1960, 10581), (2940, 7054), (3527, 5880)]