15431220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 55106688

約数和(自身を除く): 39675468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 331, 333, 370, 420, 444, 518, 555, 630, 662, 666, 740, 777, 993, 1036, 1110, 1260, 1295, 1324, 1332, 1554, 1655, 1665, 1986, 2220, 2317, 2331, 2590, 2979, 3108, 3310, 3330, 3885, 3972, 4634, 4662, 4965, 5180, 5958, 6620, 6660, 6951, 7770, 9268, 9324, 9930, 11585, 11655, 11916, 12247, 13902, 14895, 15540, 19860, 20853, 23170, 23310, 24494, 27804, 29790, 34755, 36741, 41706, 46340, 46620, 48988, 59580, 61235, 69510, 73482, 83412, 85729, 104265, 110223, 122470, 139020, 146964, 171458, 183705, 208530, 220446, 244940, 257187, 342916, 367410, 417060, 428645, 440892, 514374, 551115, 734820, 771561, 857290, 1028748, 1102230, 1285935, 1543122, 1714580, 2204460, 2571870, 3086244, 3857805, 5143740, 7715610, 15431220]

約数ペア:

[(1, 15431220), (2, 7715610), (3, 5143740), (4, 3857805), (5, 3086244), (6, 2571870), (7, 2204460), (9, 1714580), (10, 1543122), (12, 1285935), (14, 1102230), (15, 1028748), (18, 857290), (20, 771561), (21, 734820), (28, 551115), (30, 514374), (35, 440892), (36, 428645), (37, 417060), (42, 367410), (45, 342916), (60, 257187), (63, 244940), (70, 220446), (74, 208530), (84, 183705), (90, 171458), (105, 146964), (111, 139020), (126, 122470), (140, 110223), (148, 104265), (180, 85729), (185, 83412), (210, 73482), (222, 69510), (252, 61235), (259, 59580), (315, 48988), (331, 46620), (333, 46340), (370, 41706), (420, 36741), (444, 34755), (518, 29790), (555, 27804), (630, 24494), (662, 23310), (666, 23170), (740, 20853), (777, 19860), (993, 15540), (1036, 14895), (1110, 13902), (1260, 12247), (1295, 11916), (1324, 11655), (1332, 11585), (1554, 9930), (1655, 9324), (1665, 9268), (1986, 7770), (2220, 6951), (2317, 6660), (2331, 6620), (2590, 5958), (2979, 5180), (3108, 4965), (3310, 4662), (3330, 4634), (3885, 3972)]