180221940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7643}}^1$

素因数の和:7789

約数の個数: 72

約数和(自身を含む): 550918368

約数和(自身を除く): 370696428

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, 3930, 4716, 5895, 7643, 7860, 11790, 15286, 22929, 23580, 30572, 38215, 45858, 68787, 76430, 91716, 114645, 137574, 152860, 229290, 275148, 343935, 458580, 687870, 1001233, 1375740, 2002466, 3003699, 4004932, 5006165, 6007398, 9011097, 10012330, 12014796, 15018495, 18022194, 20024660, 30036990, 36044388, 45055485, 60073980, 90110970, 180221940]

約数ペア:

[(1, 180221940), (2, 90110970), (3, 60073980), (4, 45055485), (5, 36044388), (6, 30036990), (9, 20024660), (10, 18022194), (12, 15018495), (15, 12014796), (18, 10012330), (20, 9011097), (30, 6007398), (36, 5006165), (45, 4004932), (60, 3003699), (90, 2002466), (131, 1375740), (180, 1001233), (262, 687870), (393, 458580), (524, 343935), (655, 275148), (786, 229290), (1179, 152860), (1310, 137574), (1572, 114645), (1965, 91716), (2358, 76430), (2620, 68787), (3930, 45858), (4716, 38215), (5895, 30572), (7643, 23580), (7860, 22929), (11790, 15286)]