28420640

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7723}}^1$

素因数の和:7761

約数の個数: 48

約数和(自身を含む): 70072128

約数和(自身を除く): 41651488

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, 7723, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 177629, 247136, 308920, 355258, 617840, 710516, 888145, 1235680, 1421032, 1776290, 2842064, 3552580, 5684128, 7105160, 14210320, 28420640]

約数ペア:

[(1, 28420640), (2, 14210320), (4, 7105160), (5, 5684128), (8, 3552580), (10, 2842064), (16, 1776290), (20, 1421032), (23, 1235680), (32, 888145), (40, 710516), (46, 617840), (80, 355258), (92, 308920), (115, 247136), (160, 177629), (184, 154460), (230, 123568), (368, 77230), (460, 61784), (736, 38615), (920, 30892), (1840, 15446), (3680, 7723)]