257445720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{102161}}^1$

素因数の和:102185

約数の個数: 96

約数和(自身を含む): 956236320

約数和(自身を除く): 698790600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 102161, 204322, 306483, 408644, 510805, 612966, 715127, 817288, 919449, 1021610, 1225932, 1430254, 1532415, 1838898, 2043220, 2145381, 2451864, 2860508, 3064830, 3575635, 3677796, 4086440, 4290762, 4597245, 5721016, 6129660, 6436143, 7151270, 7355592, 8581524, 9194490, 10726905, 12259320, 12872286, 14302540, 17163048, 18388980, 21453810, 25744572, 28605080, 32180715, 36777960, 42907620, 51489144, 64361430, 85815240, 128722860, 257445720]

約数ペア:

[(1, 257445720), (2, 128722860), (3, 85815240), (4, 64361430), (5, 51489144), (6, 42907620), (7, 36777960), (8, 32180715), (9, 28605080), (10, 25744572), (12, 21453810), (14, 18388980), (15, 17163048), (18, 14302540), (20, 12872286), (21, 12259320), (24, 10726905), (28, 9194490), (30, 8581524), (35, 7355592), (36, 7151270), (40, 6436143), (42, 6129660), (45, 5721016), (56, 4597245), (60, 4290762), (63, 4086440), (70, 3677796), (72, 3575635), (84, 3064830), (90, 2860508), (105, 2451864), (120, 2145381), (126, 2043220), (140, 1838898), (168, 1532415), (180, 1430254), (210, 1225932), (252, 1021610), (280, 919449), (315, 817288), (360, 715127), (420, 612966), (504, 510805), (630, 408644), (840, 306483), (1260, 204322), (2520, 102161)]