421554420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2131}}^1$

素因数の和:2310

約数の個数: 144

約数和(自身を含む): 1471387008

約数和(自身を除く): 1049832588

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 157, 180, 210, 252, 314, 315, 420, 471, 628, 630, 785, 942, 1099, 1260, 1413, 1570, 1884, 2131, 2198, 2355, 2826, 3140, 3297, 4262, 4396, 4710, 5495, 5652, 6393, 6594, 7065, 8524, 9420, 9891, 10655, 10990, 12786, 13188, 14130, 14917, 16485, 19179, 19782, 21310, 21980, 25572, 28260, 29834, 31965, 32970, 38358, 39564, 42620, 44751, 49455, 59668, 63930, 65940, 74585, 76716, 89502, 95895, 98910, 127860, 134253, 149170, 179004, 191790, 197820, 223755, 268506, 298340, 334567, 383580, 447510, 537012, 669134, 671265, 895020, 1003701, 1338268, 1342530, 1672835, 2007402, 2341969, 2685060, 3011103, 3345670, 4014804, 4683938, 5018505, 6022206, 6691340, 7025907, 9367876, 10037010, 11709845, 12044412, 14051814, 15055515, 20074020, 21077721, 23419690, 28103628, 30111030, 35129535, 42155442, 46839380, 60222060, 70259070, 84310884, 105388605, 140518140, 210777210, 421554420]

約数ペア:

[(1, 421554420), (2, 210777210), (3, 140518140), (4, 105388605), (5, 84310884), (6, 70259070), (7, 60222060), (9, 46839380), (10, 42155442), (12, 35129535), (14, 30111030), (15, 28103628), (18, 23419690), (20, 21077721), (21, 20074020), (28, 15055515), (30, 14051814), (35, 12044412), (36, 11709845), (42, 10037010), (45, 9367876), (60, 7025907), (63, 6691340), (70, 6022206), (84, 5018505), (90, 4683938), (105, 4014804), (126, 3345670), (140, 3011103), (157, 2685060), (180, 2341969), (210, 2007402), (252, 1672835), (314, 1342530), (315, 1338268), (420, 1003701), (471, 895020), (628, 671265), (630, 669134), (785, 537012), (942, 447510), (1099, 383580), (1260, 334567), (1413, 298340), (1570, 268506), (1884, 223755), (2131, 197820), (2198, 191790), (2355, 179004), (2826, 149170), (3140, 134253), (3297, 127860), (4262, 98910), (4396, 95895), (4710, 89502), (5495, 76716), (5652, 74585), (6393, 65940), (6594, 63930), (7065, 59668), (8524, 49455), (9420, 44751), (9891, 42620), (10655, 39564), (10990, 38358), (12786, 32970), (13188, 31965), (14130, 29834), (14917, 28260), (16485, 25572), (19179, 21980), (19782, 21310)]