81232920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4801}}^1$

素因数の和:4865

約数の個数: 96

約数和(自身を含む): 269680320

約数和(自身を除く): 188447400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1410, 1692, 1880, 2115, 2820, 3384, 4230, 4801, 5640, 8460, 9602, 14403, 16920, 19204, 24005, 28806, 38408, 43209, 48010, 57612, 72015, 86418, 96020, 115224, 144030, 172836, 192040, 216045, 225647, 288060, 345672, 432090, 451294, 576120, 676941, 864180, 902588, 1128235, 1353882, 1728360, 1805176, 2030823, 2256470, 2707764, 3384705, 4061646, 4512940, 5415528, 6769410, 8123292, 9025880, 10154115, 13538820, 16246584, 20308230, 27077640, 40616460, 81232920]

約数ペア:

[(1, 81232920), (2, 40616460), (3, 27077640), (4, 20308230), (5, 16246584), (6, 13538820), (8, 10154115), (9, 9025880), (10, 8123292), (12, 6769410), (15, 5415528), (18, 4512940), (20, 4061646), (24, 3384705), (30, 2707764), (36, 2256470), (40, 2030823), (45, 1805176), (47, 1728360), (60, 1353882), (72, 1128235), (90, 902588), (94, 864180), (120, 676941), (141, 576120), (180, 451294), (188, 432090), (235, 345672), (282, 288060), (360, 225647), (376, 216045), (423, 192040), (470, 172836), (564, 144030), (705, 115224), (846, 96020), (940, 86418), (1128, 72015), (1410, 57612), (1692, 48010), (1880, 43209), (2115, 38408), (2820, 28806), (3384, 24005), (4230, 19204), (4801, 16920), (5640, 14403), (8460, 9602)]