213420120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:705

約数の個数: 128

約数和(自身を含む): 668528640

約数和(自身を除く): 455108520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 103, 120, 124, 155, 186, 206, 248, 309, 310, 372, 412, 465, 515, 557, 618, 620, 744, 824, 930, 1030, 1114, 1236, 1240, 1545, 1671, 1860, 2060, 2228, 2472, 2785, 3090, 3193, 3342, 3720, 4120, 4456, 5570, 6180, 6386, 6684, 8355, 9579, 11140, 12360, 12772, 13368, 15965, 16710, 17267, 19158, 22280, 25544, 31930, 33420, 34534, 38316, 47895, 51801, 57371, 63860, 66840, 69068, 76632, 86335, 95790, 103602, 114742, 127720, 138136, 172113, 172670, 191580, 207204, 229484, 259005, 286855, 344226, 345340, 383160, 414408, 458968, 518010, 573710, 688452, 690680, 860565, 1036020, 1147420, 1376904, 1721130, 1778501, 2072040, 2294840, 3442260, 3557002, 5335503, 6884520, 7114004, 8892505, 10671006, 14228008, 17785010, 21342012, 26677515, 35570020, 42684024, 53355030, 71140040, 106710060, 213420120]

約数ペア:

[(1, 213420120), (2, 106710060), (3, 71140040), (4, 53355030), (5, 42684024), (6, 35570020), (8, 26677515), (10, 21342012), (12, 17785010), (15, 14228008), (20, 10671006), (24, 8892505), (30, 7114004), (31, 6884520), (40, 5335503), (60, 3557002), (62, 3442260), (93, 2294840), (103, 2072040), (120, 1778501), (124, 1721130), (155, 1376904), (186, 1147420), (206, 1036020), (248, 860565), (309, 690680), (310, 688452), (372, 573710), (412, 518010), (465, 458968), (515, 414408), (557, 383160), (618, 345340), (620, 344226), (744, 286855), (824, 259005), (930, 229484), (1030, 207204), (1114, 191580), (1236, 172670), (1240, 172113), (1545, 138136), (1671, 127720), (1860, 114742), (2060, 103602), (2228, 95790), (2472, 86335), (2785, 76632), (3090, 69068), (3193, 66840), (3342, 63860), (3720, 57371), (4120, 51801), (4456, 47895), (5570, 38316), (6180, 34534), (6386, 33420), (6684, 31930), (8355, 25544), (9579, 22280), (11140, 19158), (12360, 17267), (12772, 16710), (13368, 15965)]