1209223980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{21601}}^1$

素因数の和:21927

約数の個数: 72

約数和(自身を含む): 3679943904

約数和(自身を除く): 2470719924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1555, 1866, 2799, 3110, 3732, 4665, 5598, 6220, 9330, 11196, 13995, 18660, 21601, 27990, 43202, 55980, 64803, 86404, 108005, 129606, 194409, 216010, 259212, 324015, 388818, 432020, 648030, 777636, 972045, 1296060, 1944090, 3888180, 6717911, 13435822, 20153733, 26871644, 33589555, 40307466, 60461199, 67179110, 80614932, 100768665, 120922398, 134358220, 201537330, 241844796, 302305995, 403074660, 604611990, 1209223980]

約数ペア:

[(1, 1209223980), (2, 604611990), (3, 403074660), (4, 302305995), (5, 241844796), (6, 201537330), (9, 134358220), (10, 120922398), (12, 100768665), (15, 80614932), (18, 67179110), (20, 60461199), (30, 40307466), (36, 33589555), (45, 26871644), (60, 20153733), (90, 13435822), (180, 6717911), (311, 3888180), (622, 1944090), (933, 1296060), (1244, 972045), (1555, 777636), (1866, 648030), (2799, 432020), (3110, 388818), (3732, 324015), (4665, 259212), (5598, 216010), (6220, 194409), (9330, 129606), (11196, 108005), (13995, 86404), (18660, 64803), (21601, 55980), (27990, 43202)]