778877580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{998561}}^1$

素因数の和:998586

約数の個数: 48

約数和(自身を含む): 2348617824

約数和(自身を除く): 1569740244

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, 998561, 1997122, 2995683, 3994244, 4992805, 5991366, 9985610, 11982732, 12981293, 14978415, 19971220, 25962586, 29956830, 38943879, 51925172, 59913660, 64906465, 77887758, 129812930, 155775516, 194719395, 259625860, 389438790, 778877580]

約数ペア:

[(1, 778877580), (2, 389438790), (3, 259625860), (4, 194719395), (5, 155775516), (6, 129812930), (10, 77887758), (12, 64906465), (13, 59913660), (15, 51925172), (20, 38943879), (26, 29956830), (30, 25962586), (39, 19971220), (52, 14978415), (60, 12981293), (65, 11982732), (78, 9985610), (130, 5991366), (156, 4992805), (195, 3994244), (260, 2995683), (390, 1997122), (780, 998561)]