2640780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 8491392

約数和(自身を除く): 5850612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 863, 1020, 1530, 1726, 2589, 3060, 3452, 4315, 5178, 7767, 8630, 10356, 12945, 14671, 15534, 17260, 25890, 29342, 31068, 38835, 44013, 51780, 58684, 73355, 77670, 88026, 132039, 146710, 155340, 176052, 220065, 264078, 293420, 440130, 528156, 660195, 880260, 1320390, 2640780]

約数ペア:

[(1, 2640780), (2, 1320390), (3, 880260), (4, 660195), (5, 528156), (6, 440130), (9, 293420), (10, 264078), (12, 220065), (15, 176052), (17, 155340), (18, 146710), (20, 132039), (30, 88026), (34, 77670), (36, 73355), (45, 58684), (51, 51780), (60, 44013), (68, 38835), (85, 31068), (90, 29342), (102, 25890), (153, 17260), (170, 15534), (180, 14671), (204, 12945), (255, 10356), (306, 8630), (340, 7767), (510, 5178), (612, 4315), (765, 3452), (863, 3060), (1020, 2589), (1530, 1726)]