81871440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48733}}^1$

素因数の和:48756

約数の個数: 80

約数和(自身を含む): 290064768

約数和(自身を除く): 208193328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48733, 97466, 146199, 194932, 243665, 292398, 341131, 389864, 487330, 584796, 682262, 730995, 779728, 974660, 1023393, 1169592, 1364524, 1461990, 1705655, 1949320, 2046786, 2339184, 2729048, 2923980, 3411310, 3898640, 4093572, 5116965, 5458096, 5847960, 6822620, 8187144, 10233930, 11695920, 13645240, 16374288, 20467860, 27290480, 40935720, 81871440]

約数ペア:

[(1, 81871440), (2, 40935720), (3, 27290480), (4, 20467860), (5, 16374288), (6, 13645240), (7, 11695920), (8, 10233930), (10, 8187144), (12, 6822620), (14, 5847960), (15, 5458096), (16, 5116965), (20, 4093572), (21, 3898640), (24, 3411310), (28, 2923980), (30, 2729048), (35, 2339184), (40, 2046786), (42, 1949320), (48, 1705655), (56, 1461990), (60, 1364524), (70, 1169592), (80, 1023393), (84, 974660), (105, 779728), (112, 730995), (120, 682262), (140, 584796), (168, 487330), (210, 389864), (240, 341131), (280, 292398), (336, 243665), (420, 194932), (560, 146199), (840, 97466), (1680, 48733)]