28087740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 92225952

約数和(自身を除く): 64138212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 67, 68, 85, 90, 102, 134, 137, 153, 170, 180, 201, 204, 255, 268, 274, 306, 335, 340, 402, 411, 510, 548, 603, 612, 670, 685, 765, 804, 822, 1005, 1020, 1139, 1206, 1233, 1340, 1370, 1530, 1644, 2010, 2055, 2278, 2329, 2412, 2466, 2740, 3015, 3060, 3417, 4020, 4110, 4556, 4658, 4932, 5695, 6030, 6165, 6834, 6987, 8220, 9179, 9316, 10251, 11390, 11645, 12060, 12330, 13668, 13974, 17085, 18358, 20502, 20961, 22780, 23290, 24660, 27537, 27948, 34170, 34935, 36716, 41004, 41922, 45895, 46580, 51255, 55074, 68340, 69870, 82611, 83844, 91790, 102510, 104805, 110148, 137685, 139740, 156043, 165222, 183580, 205020, 209610, 275370, 312086, 330444, 413055, 419220, 468129, 550740, 624172, 780215, 826110, 936258, 1404387, 1560430, 1652220, 1872516, 2340645, 2808774, 3120860, 4681290, 5617548, 7021935, 9362580, 14043870, 28087740]

約数ペア:

[(1, 28087740), (2, 14043870), (3, 9362580), (4, 7021935), (5, 5617548), (6, 4681290), (9, 3120860), (10, 2808774), (12, 2340645), (15, 1872516), (17, 1652220), (18, 1560430), (20, 1404387), (30, 936258), (34, 826110), (36, 780215), (45, 624172), (51, 550740), (60, 468129), (67, 419220), (68, 413055), (85, 330444), (90, 312086), (102, 275370), (134, 209610), (137, 205020), (153, 183580), (170, 165222), (180, 156043), (201, 139740), (204, 137685), (255, 110148), (268, 104805), (274, 102510), (306, 91790), (335, 83844), (340, 82611), (402, 69870), (411, 68340), (510, 55074), (548, 51255), (603, 46580), (612, 45895), (670, 41922), (685, 41004), (765, 36716), (804, 34935), (822, 34170), (1005, 27948), (1020, 27537), (1139, 24660), (1206, 23290), (1233, 22780), (1340, 20961), (1370, 20502), (1530, 18358), (1644, 17085), (2010, 13974), (2055, 13668), (2278, 12330), (2329, 12060), (2412, 11645), (2466, 11390), (2740, 10251), (3015, 9316), (3060, 9179), (3417, 8220), (4020, 6987), (4110, 6834), (4556, 6165), (4658, 6030), (4932, 5695)]