20290920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13007}}^1$

素因数の和:13034

約数の個数: 64

約数和(自身を含む): 65560320

約数和(自身を除く): 45269400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13007, 26014, 39021, 52028, 65035, 78042, 104056, 130070, 156084, 169091, 195105, 260140, 312168, 338182, 390210, 507273, 520280, 676364, 780420, 845455, 1014546, 1352728, 1560840, 1690910, 2029092, 2536365, 3381820, 4058184, 5072730, 6763640, 10145460, 20290920]

約数ペア:

[(1, 20290920), (2, 10145460), (3, 6763640), (4, 5072730), (5, 4058184), (6, 3381820), (8, 2536365), (10, 2029092), (12, 1690910), (13, 1560840), (15, 1352728), (20, 1014546), (24, 845455), (26, 780420), (30, 676364), (39, 520280), (40, 507273), (52, 390210), (60, 338182), (65, 312168), (78, 260140), (104, 195105), (120, 169091), (130, 156084), (156, 130070), (195, 104056), (260, 78042), (312, 65035), (390, 52028), (520, 39021), (780, 26014), (1560, 13007)]