19876920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23663}}^1$

素因数の和:23684

約数の個数: 64

約数和(自身を含む): 68152320

約数和(自身を除く): 48275400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23663, 47326, 70989, 94652, 118315, 141978, 165641, 189304, 236630, 283956, 331282, 354945, 473260, 496923, 567912, 662564, 709890, 828205, 946520, 993846, 1325128, 1419780, 1656410, 1987692, 2484615, 2839560, 3312820, 3975384, 4969230, 6625640, 9938460, 19876920]

約数ペア:

[(1, 19876920), (2, 9938460), (3, 6625640), (4, 4969230), (5, 3975384), (6, 3312820), (7, 2839560), (8, 2484615), (10, 1987692), (12, 1656410), (14, 1419780), (15, 1325128), (20, 993846), (21, 946520), (24, 828205), (28, 709890), (30, 662564), (35, 567912), (40, 496923), (42, 473260), (56, 354945), (60, 331282), (70, 283956), (84, 236630), (105, 189304), (120, 165641), (140, 141978), (168, 118315), (210, 94652), (280, 70989), (420, 47326), (840, 23663)]