28431780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36451}}^1$

素因数の和:36476

約数の個数: 48

約数和(自身を含む): 85735104

約数和(自身を除く): 57303324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36451, 72902, 109353, 145804, 182255, 218706, 364510, 437412, 473863, 546765, 729020, 947726, 1093530, 1421589, 1895452, 2187060, 2369315, 2843178, 4738630, 5686356, 7107945, 9477260, 14215890, 28431780]

約数ペア:

[(1, 28431780), (2, 14215890), (3, 9477260), (4, 7107945), (5, 5686356), (6, 4738630), (10, 2843178), (12, 2369315), (13, 2187060), (15, 1895452), (20, 1421589), (26, 1093530), (30, 947726), (39, 729020), (52, 546765), (60, 473863), (65, 437412), (78, 364510), (130, 218706), (156, 182255), (195, 145804), (260, 109353), (390, 72902), (780, 36451)]