1311442740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{40253}}^1$

素因数の和:40449

約数の個数: 72

約数和(自身を含む): 4000120488

約数和(自身を除く): 2688677748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 3258, 3620, 5430, 6516, 8145, 10860, 16290, 32580, 40253, 80506, 120759, 161012, 201265, 241518, 362277, 402530, 483036, 603795, 724554, 805060, 1207590, 1449108, 1811385, 2415180, 3622770, 7245540, 7285793, 14571586, 21857379, 29143172, 36428965, 43714758, 65572137, 72857930, 87429516, 109286895, 131144274, 145715860, 218573790, 262288548, 327860685, 437147580, 655721370, 1311442740]

約数ペア:

[(1, 1311442740), (2, 655721370), (3, 437147580), (4, 327860685), (5, 262288548), (6, 218573790), (9, 145715860), (10, 131144274), (12, 109286895), (15, 87429516), (18, 72857930), (20, 65572137), (30, 43714758), (36, 36428965), (45, 29143172), (60, 21857379), (90, 14571586), (180, 7285793), (181, 7245540), (362, 3622770), (543, 2415180), (724, 1811385), (905, 1449108), (1086, 1207590), (1629, 805060), (1810, 724554), (2172, 603795), (2715, 483036), (3258, 402530), (3620, 362277), (5430, 241518), (6516, 201265), (8145, 161012), (10860, 120759), (16290, 80506), (32580, 40253)]