20265760

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5507}}^1$

素因数の和:5545

約数の個数: 48

約数和(自身を含む): 49968576

約数和(自身を除く): 29702816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5507, 11014, 22028, 27535, 44056, 55070, 88112, 110140, 126661, 176224, 220280, 253322, 440560, 506644, 633305, 881120, 1013288, 1266610, 2026576, 2533220, 4053152, 5066440, 10132880, 20265760]

約数ペア:

[(1, 20265760), (2, 10132880), (4, 5066440), (5, 4053152), (8, 2533220), (10, 2026576), (16, 1266610), (20, 1013288), (23, 881120), (32, 633305), (40, 506644), (46, 440560), (80, 253322), (92, 220280), (115, 176224), (160, 126661), (184, 110140), (230, 88112), (368, 55070), (460, 44056), (736, 27535), (920, 22028), (1840, 11014), (3680, 5507)]