28977660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 95440800

約数和(自身を除く): 66463140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 229, 285, 333, 342, 370, 380, 444, 458, 555, 570, 666, 684, 687, 703, 740, 855, 916, 1110, 1140, 1145, 1332, 1374, 1406, 1665, 1710, 2061, 2109, 2220, 2290, 2748, 2812, 3330, 3420, 3435, 3515, 4122, 4218, 4351, 4580, 6327, 6660, 6870, 7030, 8244, 8436, 8473, 8702, 10305, 10545, 12654, 13053, 13740, 14060, 16946, 17404, 20610, 21090, 21755, 25308, 25419, 26106, 31635, 33892, 39159, 41220, 42180, 42365, 43510, 50838, 52212, 63270, 65265, 76257, 78318, 84730, 87020, 101676, 126540, 127095, 130530, 152514, 156636, 160987, 169460, 195795, 254190, 261060, 305028, 321974, 381285, 391590, 482961, 508380, 643948, 762570, 783180, 804935, 965922, 1448883, 1525140, 1609870, 1931844, 2414805, 2897766, 3219740, 4829610, 5795532, 7244415, 9659220, 14488830, 28977660]

約数ペア:

[(1, 28977660), (2, 14488830), (3, 9659220), (4, 7244415), (5, 5795532), (6, 4829610), (9, 3219740), (10, 2897766), (12, 2414805), (15, 1931844), (18, 1609870), (19, 1525140), (20, 1448883), (30, 965922), (36, 804935), (37, 783180), (38, 762570), (45, 643948), (57, 508380), (60, 482961), (74, 391590), (76, 381285), (90, 321974), (95, 305028), (111, 261060), (114, 254190), (148, 195795), (171, 169460), (180, 160987), (185, 156636), (190, 152514), (222, 130530), (228, 127095), (229, 126540), (285, 101676), (333, 87020), (342, 84730), (370, 78318), (380, 76257), (444, 65265), (458, 63270), (555, 52212), (570, 50838), (666, 43510), (684, 42365), (687, 42180), (703, 41220), (740, 39159), (855, 33892), (916, 31635), (1110, 26106), (1140, 25419), (1145, 25308), (1332, 21755), (1374, 21090), (1406, 20610), (1665, 17404), (1710, 16946), (2061, 14060), (2109, 13740), (2220, 13053), (2290, 12654), (2748, 10545), (2812, 10305), (3330, 8702), (3420, 8473), (3435, 8436), (3515, 8244), (4122, 7030), (4218, 6870), (4351, 6660), (4580, 6327)]