16689660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21397}}^1$

素因数の和:21422

約数の個数: 48

約数和(自身を含む): 50328096

約数和(自身を除く): 33638436

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, 21397, 42794, 64191, 85588, 106985, 128382, 213970, 256764, 278161, 320955, 427940, 556322, 641910, 834483, 1112644, 1283820, 1390805, 1668966, 2781610, 3337932, 4172415, 5563220, 8344830, 16689660]

約数ペア:

[(1, 16689660), (2, 8344830), (3, 5563220), (4, 4172415), (5, 3337932), (6, 2781610), (10, 1668966), (12, 1390805), (13, 1283820), (15, 1112644), (20, 834483), (26, 641910), (30, 556322), (39, 427940), (52, 320955), (60, 278161), (65, 256764), (78, 213970), (130, 128382), (156, 106985), (195, 85588), (260, 64191), (390, 42794), (780, 21397)]