320419580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 748077120

約数和(自身を除く): 427657540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 89, 122, 130, 178, 227, 244, 260, 305, 356, 445, 454, 610, 793, 890, 908, 1135, 1157, 1220, 1586, 1780, 2270, 2314, 2951, 3172, 3965, 4540, 4628, 5429, 5785, 5902, 7930, 10858, 11570, 11804, 13847, 14755, 15860, 20203, 21716, 23140, 27145, 27694, 29510, 40406, 54290, 55388, 59020, 69235, 70577, 80812, 101015, 108580, 138470, 141154, 180011, 202030, 262639, 276940, 282308, 352885, 360022, 404060, 525278, 705770, 720044, 900055, 1050556, 1232383, 1313195, 1411540, 1800110, 2464766, 2626390, 3600220, 4929532, 5252780, 6161915, 12323830, 16020979, 24647660, 32041958, 64083916, 80104895, 160209790, 320419580]

約数ペア:

[(1, 320419580), (2, 160209790), (4, 80104895), (5, 64083916), (10, 32041958), (13, 24647660), (20, 16020979), (26, 12323830), (52, 6161915), (61, 5252780), (65, 4929532), (89, 3600220), (122, 2626390), (130, 2464766), (178, 1800110), (227, 1411540), (244, 1313195), (260, 1232383), (305, 1050556), (356, 900055), (445, 720044), (454, 705770), (610, 525278), (793, 404060), (890, 360022), (908, 352885), (1135, 282308), (1157, 276940), (1220, 262639), (1586, 202030), (1780, 180011), (2270, 141154), (2314, 138470), (2951, 108580), (3172, 101015), (3965, 80812), (4540, 70577), (4628, 69235), (5429, 59020), (5785, 55388), (5902, 54290), (7930, 40406), (10858, 29510), (11570, 27694), (11804, 27145), (13847, 23140), (14755, 21716), (15860, 20203)]