84439980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3581}}^1$

素因数の和:3727

約数の個数: 72

約数和(自身を含む): 258161904

約数和(自身を除く): 173721924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3581, 3930, 4716, 5895, 7162, 7860, 10743, 11790, 14324, 17905, 21486, 23580, 32229, 35810, 42972, 53715, 64458, 71620, 107430, 128916, 161145, 214860, 322290, 469111, 644580, 938222, 1407333, 1876444, 2345555, 2814666, 4221999, 4691110, 5629332, 7036665, 8443998, 9382220, 14073330, 16887996, 21109995, 28146660, 42219990, 84439980]

約数ペア:

[(1, 84439980), (2, 42219990), (3, 28146660), (4, 21109995), (5, 16887996), (6, 14073330), (9, 9382220), (10, 8443998), (12, 7036665), (15, 5629332), (18, 4691110), (20, 4221999), (30, 2814666), (36, 2345555), (45, 1876444), (60, 1407333), (90, 938222), (131, 644580), (180, 469111), (262, 322290), (393, 214860), (524, 161145), (655, 128916), (786, 107430), (1179, 71620), (1310, 64458), (1572, 53715), (1965, 42972), (2358, 35810), (2620, 32229), (3581, 23580), (3930, 21486), (4716, 17905), (5895, 14324), (7162, 11790), (7860, 10743)]