28627740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1787}}^1$

素因数の和:1891

約数の個数: 72

約数和(自身を含む): 87862320

約数和(自身を除く): 59234580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 1787, 2670, 3204, 3574, 4005, 5340, 5361, 7148, 8010, 8935, 10722, 16020, 16083, 17870, 21444, 26805, 32166, 35740, 53610, 64332, 80415, 107220, 159043, 160830, 318086, 321660, 477129, 636172, 795215, 954258, 1431387, 1590430, 1908516, 2385645, 2862774, 3180860, 4771290, 5725548, 7156935, 9542580, 14313870, 28627740]

約数ペア:

[(1, 28627740), (2, 14313870), (3, 9542580), (4, 7156935), (5, 5725548), (6, 4771290), (9, 3180860), (10, 2862774), (12, 2385645), (15, 1908516), (18, 1590430), (20, 1431387), (30, 954258), (36, 795215), (45, 636172), (60, 477129), (89, 321660), (90, 318086), (178, 160830), (180, 159043), (267, 107220), (356, 80415), (445, 64332), (534, 53610), (801, 35740), (890, 32166), (1068, 26805), (1335, 21444), (1602, 17870), (1780, 16083), (1787, 16020), (2670, 10722), (3204, 8935), (3574, 8010), (4005, 7148), (5340, 5361)]