20806311420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1298771}}^1$

素因数の和:1298875

約数の個数: 72

約数和(自身を含む): 63821656080

約数和(自身を除く): 43015344660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 16020, 1298771, 2597542, 3896313, 5195084, 6493855, 7792626, 11688939, 12987710, 15585252, 19481565, 23377878, 25975420, 38963130, 46755756, 58444695, 77926260, 115590619, 116889390, 231181238, 233778780, 346771857, 462362476, 577953095, 693543714, 1040315571, 1155906190, 1387087428, 1733859285, 2080631142, 2311812380, 3467718570, 4161262284, 5201577855, 6935437140, 10403155710, 20806311420]

約数ペア:

[(1, 20806311420), (2, 10403155710), (3, 6935437140), (4, 5201577855), (5, 4161262284), (6, 3467718570), (9, 2311812380), (10, 2080631142), (12, 1733859285), (15, 1387087428), (18, 1155906190), (20, 1040315571), (30, 693543714), (36, 577953095), (45, 462362476), (60, 346771857), (89, 233778780), (90, 231181238), (178, 116889390), (180, 115590619), (267, 77926260), (356, 58444695), (445, 46755756), (534, 38963130), (801, 25975420), (890, 23377878), (1068, 19481565), (1335, 15585252), (1602, 12987710), (1780, 11688939), (2670, 7792626), (3204, 6493855), (4005, 5195084), (5340, 3896313), (8010, 2597542), (16020, 1298771)]