1661176920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{4691}}^1$

素因数の和:4945

約数の個数: 128

約数和(自身を含む): 5391671040

約数和(自身を除く): 3730494120

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, 227, 260, 312, 390, 454, 520, 681, 780, 908, 1135, 1362, 1560, 1816, 2270, 2724, 2951, 3405, 4540, 4691, 5448, 5902, 6810, 8853, 9080, 9382, 11804, 13620, 14073, 14755, 17706, 18764, 23455, 23608, 27240, 28146, 29510, 35412, 37528, 44265, 46910, 56292, 59020, 60983, 70365, 70824, 88530, 93820, 112584, 118040, 121966, 140730, 177060, 182949, 187640, 243932, 281460, 304915, 354120, 365898, 487864, 562920, 609830, 731796, 914745, 1064857, 1219660, 1463592, 1829490, 2129714, 2439320, 3194571, 3658980, 4259428, 5324285, 6389142, 7317960, 8518856, 10648570, 12778284, 13843141, 15972855, 21297140, 25556568, 27686282, 31945710, 41529423, 42594280, 55372564, 63891420, 69215705, 83058846, 110745128, 127782840, 138431410, 166117692, 207647115, 276862820, 332235384, 415294230, 553725640, 830588460, 1661176920]

約数ペア:

[(1, 1661176920), (2, 830588460), (3, 553725640), (4, 415294230), (5, 332235384), (6, 276862820), (8, 207647115), (10, 166117692), (12, 138431410), (13, 127782840), (15, 110745128), (20, 83058846), (24, 69215705), (26, 63891420), (30, 55372564), (39, 42594280), (40, 41529423), (52, 31945710), (60, 27686282), (65, 25556568), (78, 21297140), (104, 15972855), (120, 13843141), (130, 12778284), (156, 10648570), (195, 8518856), (227, 7317960), (260, 6389142), (312, 5324285), (390, 4259428), (454, 3658980), (520, 3194571), (681, 2439320), (780, 2129714), (908, 1829490), (1135, 1463592), (1362, 1219660), (1560, 1064857), (1816, 914745), (2270, 731796), (2724, 609830), (2951, 562920), (3405, 487864), (4540, 365898), (4691, 354120), (5448, 304915), (5902, 281460), (6810, 243932), (8853, 187640), (9080, 182949), (9382, 177060), (11804, 140730), (13620, 121966), (14073, 118040), (14755, 112584), (17706, 93820), (18764, 88530), (23455, 70824), (23608, 70365), (27240, 60983), (28146, 59020), (29510, 56292), (35412, 46910), (37528, 44265)]