1261921560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{618589}}^1$

素因数の和:618620

約数の個数: 64

約数和(自身を含む): 4008463200

約数和(自身を除く): 2746541640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 618589, 1237178, 1855767, 2474356, 3092945, 3711534, 4948712, 6185890, 7423068, 9278835, 10516013, 12371780, 14846136, 18557670, 21032026, 24743560, 31548039, 37115340, 42064052, 52580065, 63096078, 74230680, 84128104, 105160130, 126192156, 157740195, 210320260, 252384312, 315480390, 420640520, 630960780, 1261921560]

約数ペア:

[(1, 1261921560), (2, 630960780), (3, 420640520), (4, 315480390), (5, 252384312), (6, 210320260), (8, 157740195), (10, 126192156), (12, 105160130), (15, 84128104), (17, 74230680), (20, 63096078), (24, 52580065), (30, 42064052), (34, 37115340), (40, 31548039), (51, 24743560), (60, 21032026), (68, 18557670), (85, 14846136), (102, 12371780), (120, 10516013), (136, 9278835), (170, 7423068), (204, 6185890), (255, 4948712), (340, 3711534), (408, 3092945), (510, 2474356), (680, 1855767), (1020, 1237178), (2040, 618589)]