311025840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2003}}^1$

素因数の和:2666

約数の個数: 80

約数和(自身を含む): 966152448

約数和(自身を除く): 655126608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 647, 1294, 1941, 2003, 2588, 3235, 3882, 4006, 5176, 6009, 6470, 7764, 8012, 9705, 10015, 10352, 12018, 12940, 15528, 16024, 19410, 20030, 24036, 25880, 30045, 31056, 32048, 38820, 40060, 48072, 51760, 60090, 77640, 80120, 96144, 120180, 155280, 160240, 240360, 480720, 1295941, 2591882, 3887823, 5183764, 6479705, 7775646, 10367528, 12959410, 15551292, 19439115, 20735056, 25918820, 31102584, 38878230, 51837640, 62205168, 77756460, 103675280, 155512920, 311025840]

約数ペア:

[(1, 311025840), (2, 155512920), (3, 103675280), (4, 77756460), (5, 62205168), (6, 51837640), (8, 38878230), (10, 31102584), (12, 25918820), (15, 20735056), (16, 19439115), (20, 15551292), (24, 12959410), (30, 10367528), (40, 7775646), (48, 6479705), (60, 5183764), (80, 3887823), (120, 2591882), (240, 1295941), (647, 480720), (1294, 240360), (1941, 160240), (2003, 155280), (2588, 120180), (3235, 96144), (3882, 80120), (4006, 77640), (5176, 60090), (6009, 51760), (6470, 48072), (7764, 40060), (8012, 38820), (9705, 32048), (10015, 31056), (10352, 30045), (12018, 25880), (12940, 24036), (15528, 20030), (16024, 19410)]