21671640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1627}}^1$

素因数の和:1681

約数の個数: 96

約数和(自身を含む): 72380880

約数和(自身を除く): 50709240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1627, 1665, 2220, 2664, 3254, 3330, 4440, 4881, 6508, 6660, 8135, 9762, 13016, 13320, 14643, 16270, 19524, 24405, 29286, 32540, 39048, 48810, 58572, 60199, 65080, 73215, 97620, 117144, 120398, 146430, 180597, 195240, 240796, 292860, 300995, 361194, 481592, 541791, 585720, 601990, 722388, 902985, 1083582, 1203980, 1444776, 1805970, 2167164, 2407960, 2708955, 3611940, 4334328, 5417910, 7223880, 10835820, 21671640]

約数ペア:

[(1, 21671640), (2, 10835820), (3, 7223880), (4, 5417910), (5, 4334328), (6, 3611940), (8, 2708955), (9, 2407960), (10, 2167164), (12, 1805970), (15, 1444776), (18, 1203980), (20, 1083582), (24, 902985), (30, 722388), (36, 601990), (37, 585720), (40, 541791), (45, 481592), (60, 361194), (72, 300995), (74, 292860), (90, 240796), (111, 195240), (120, 180597), (148, 146430), (180, 120398), (185, 117144), (222, 97620), (296, 73215), (333, 65080), (360, 60199), (370, 58572), (444, 48810), (555, 39048), (666, 32540), (740, 29286), (888, 24405), (1110, 19524), (1332, 16270), (1480, 14643), (1627, 13320), (1665, 13016), (2220, 9762), (2664, 8135), (3254, 6660), (3330, 6508), (4440, 4881)]