1656551988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{505663}}^1$

素因数の和:505693

約数の個数: 72

約数和(自身を含む): 5153727488

約数和(自身を除く): 3497175500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 505663, 1011326, 1516989, 2022652, 3033978, 3539641, 4550967, 6067956, 6573619, 7079282, 9101934, 10618923, 13147238, 14158564, 18203868, 19720857, 21237846, 26294476, 31856769, 39441714, 42475692, 46015333, 59162571, 63713538, 78883428, 92030666, 118325142, 127427076, 138045999, 184061332, 236650284, 276091998, 414137997, 552183996, 828275994, 1656551988]

約数ペア:

[(1, 1656551988), (2, 828275994), (3, 552183996), (4, 414137997), (6, 276091998), (7, 236650284), (9, 184061332), (12, 138045999), (13, 127427076), (14, 118325142), (18, 92030666), (21, 78883428), (26, 63713538), (28, 59162571), (36, 46015333), (39, 42475692), (42, 39441714), (52, 31856769), (63, 26294476), (78, 21237846), (84, 19720857), (91, 18203868), (117, 14158564), (126, 13147238), (156, 10618923), (182, 9101934), (234, 7079282), (252, 6573619), (273, 6067956), (364, 4550967), (468, 3539641), (546, 3033978), (819, 2022652), (1092, 1516989), (1638, 1011326), (3276, 505663)]